Aquila - Magyar ornithologiai központ. (A Magyar Ornithologiai Knt Kiadva, 1974)

Aquila - Magyar ornithologiai központ. (A Magyar Ornithologiai Knt Kiadva, 1975)

Archiv für Naturgeschichte Abteilung B (Nicolai, 1918)

Archiv für Naturgeschichte Abteilung B (Nicolai, 1920)

Archiv für Naturgeschichte (Nicolai, 1873)

Archiv für Naturgeschichte (Nicolai, 1886)

Archiv für Naturgeschichte (Nicolai, 1887)

Archiv für Naturgeschichte (Nicolai, 1895)

Archiv für Naturgeschichte (Nicolai, 1907)

Archiv für Naturgeschichte (Nicolai, 1908)

Arnoldia - Arnold Arboretum. (Arnold Arboretum, Harvard University, 1971)

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Audubon and his journals - Coues, Elliott, 1842 -1899 (C. Scribner, 1897)

Audubon and his journals - Coues, Elliott, 1842 -1899 (Nimmo, 1898)

Audubon and his journals - Coues, Elliott, 1842 -1899 (Scribner's Sons, 1897)

Audubon and his journals - Coues, Elliott, 1842 -1899 (C. Scribner's Sons, 1899)

The Audubon magazine - National Audubon Society. (Forest and Stream Publishing Co.], 1889)

The Auk - American Ornithologists' Union. (American Ornithologists' Union, etc, 1884)

The Auk - American Ornithologists' Union. (American Ornithologists' Union, etc, 1885)

The Auk - American Ornithologists' Union. (American Ornithologists' Union, etc, 1886)

The Auk - American Ornithologists' Union. (American Ornithologists' Union, etc, 1887)

The Auk - American Ornithologists' Union. (American Ornithologists' Union, etc, 1888)

The Auk - American Ornithologists' Union. (American Ornithologists' Union, etc, 1889)

The Auk - American Ornithologists' Union. (American Ornithologists' Union, etc, 1890)

The Auk - American Ornithologists' Union. (American Ornithologists' Union, etc, 1891)

The Auk - American Ornithologists' Union. (American Ornithologists' Union, etc, 1892)

The Auk - American Ornithologists' Union. (American Ornithologists' Union, etc, 1893)

The Auk - American Ornithologists' Union. (American Ornithologists' Union, etc, 1894)

The Auk - American Ornithologists' Union. (American Ornithologists' Union, etc, 1895)

The Auk - American Ornithologists' Union. (American Ornithologists' Union, etc, 1896)

The Auk - American Ornithologists' Union. (American Ornithologists' Union, etc, 1898)

The Auk - American Ornithologists' Union. (American Ornithologists' Union, etc, 1900)

The Auk - American Ornithologists' Union. (American Ornithologists' Union, etc, 1876)

The Auk - American Ornithologists' Union. (American Ornithologists' Union, etc, 1901)

The Auk - American Ornithologists' Union. (American Ornithologists' Union, etc, 1902)

The Auk - American Ornithologists' Union. (American Ornithologists' Union, etc, 1903)

The Auk - American Ornithologists' Union. (American Ornithologists' Union, etc, 1904)

The Auk - American Ornithologists' Union. (American Ornithologists' Union, etc, 1905)

The Auk - American Ornithologists' Union. (American Ornithologists' Union, etc, 1906)

The Auk - American Ornithologists' Union. (American Ornithologists' Union, etc, 1908)

The Auk - American Ornithologists' Union. (American Ornithologists' Union, etc, 1909)

The Auk - American Ornithologists' Union. (American Ornithologists' Union, etc, 1910)

The Auk - American Ornithologists' Union. (American Ornithologists' Union, etc, 1915)

The Auk - American Ornithologists' Union. (American Ornithologists' Union, etc, 1912)

The Auk - American Ornithologists' Union. (American Ornithologists' Union, etc, 1919)

An authentic history of Lancaster County : in the state of Pennsylvania - Mombert, J. I. (Jacob Isidor), 1829 -1913 (J.E. Barr & Co, 1869)

An authentic history of Lancaster County, in the state of Pennsylvania - Mombert, J. I. (Jacob Isidor), 1829 -1913 (J.E. Barr & Co, 1869)

Avian medicine : principles and application - Harrison, Greg J. (Wingers Pub, 1994)

The Avicultural magazine - Avicultural Society. (Avicultural Society, etc, 1905)

The Avicultural magazine - Avicultural Society. (Avicultural Society, etc, 1930)

The Avicultural magazine - Avicultural Society. (Avicultural Society, etc, 1939)

The Avicultural magazine - Avicultural Society. (Avicultural Society, etc, 1961)

The Avicultural magazine - Avicultural Society. (Avicultural Society, etc, 1982)

The Avicultural magazine - Avicultural Society. (Avicultural Society, etc, 2010)

Baby bird-finder ... by Harriet E. Richards and Emma G. Cummings - Cummings, Emma G., 1856 -1940 (W.A. Butterfield, 1906)

Banisteria : a journal devoted to the natural history of Virginia - Virginia Natural History Society. (Virginia Natural History Society, 1995)

Banisteria : a journal devoted to the natural history of Virginia - Virginia Natural History Society. (Virginia Natural History Society, 2002)

Banisteria : a journal devoted to the natural history of Virginia - Virginia Natural History Society. (Virginia Natural History Society, 2004)

Banisteria : a journal devoted to the natural history of Virginia - Virginia Natural History Society. (Virginia Natural History Society, 2006)

Banisteria : a journal devoted to the natural history of Virginia - Virginia Natural History Society. (Virginia Natural History Society, 2013)

Beaverhead-Deerlodge National Forest Tobacco Root vegetation management plan : draft environmental impact statement, Madison County, Montana - Beaverhead-Deerlodge National Forest (Agency : U.S.) (USDA, Forest Service, Beaverhead-Deerlodge National Forest, 1999)

Bericht der Senckenbergischen Naturforschenden Gesellschaft in Frankfurt am Main - Senckenbergische Naturforschende Gesellschaft. (Die Gesellschaft, 1908)

Bericht der Senckenbergischen Naturforschenden Gesellschaft in Frankfurt am Main - Senckenbergische Naturforschende Gesellschaft. (Die Gesellschaft, 1909)

Bericht über die Leistungen in der Naturgeschichte der Vögel - Pelzeln, August von, 1825 -1891 (1882)

Bericht über die Leistungen in der Naturgeschichte der Vögel - Pelzeln, August von, 1825 -1891 (1888)

Bibliographia zoologica - Concilium Bibliographicum. (Wilhelm Engelmann, 1898)

Bibliographia zoologica - Concilium Bibliographicum. (Wilhelm Engelmann, 1901)

Bibliographia zoologica - Concilium Bibliographicum. (Wilhelm Engelmann, 1909)

Bibliographia zoologica - Concilium Bibliographicum. (Wilhelm Engelmann, 1913)

A bibliography of birds : with special reference to anatomy, behavior, biochemistry Part 3 Subject index - Field Museum of Natural History. (Field Museum of Natural History, 1946)

A bibliography of birds : with special reference to anatomy, behavior, biochemistry Part 2 Author catalogue K to Z - Field Museum of Natural History. (Field Museum of Natural History, 1939)

A bibliography of birds : with special reference to anatomy, behavior, biochemistry Part 4 Finding index - Field Museum of Natural History. (Field Museum of Natural History, 1959)

Bibliotheca zoologica II. verzeichness der schriften über zoologie welche in den periodischen werken enthalten und vom jahre 1861-1880 selbständig erschienen sind, mit einschluss der allgemein-naturgeschichtlichen, periodischen und paleontologischen schriften - Carus, Julius Victor, 1823 -1903 (Wilhelm Engelmann, 1887)

Biltmore lectures on sylviculture - Oberholser, Harry C. (Harry Church), 1870 -1963 (Brandow Printing Co, 1907)

Binomial and trinomial index to The auk, 1884-1940, also including the Nuttall bulletin, 1876-1883, and the A.O.U. check-list of North American birds (all seven editions) - Pollock, Andrew W. ([Andrew W. Pollock III], 2015)

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Biological notes - Illinois. Natural History Survey Division (Illinois Natural History Survey, 1967)

A biological reconnaissance in the vicinity of Flathead Lake - Elrod, Morton J. (Morton John), 1863 -1953 (University of Montana, 1902)

Biological review of Ontario (Biological Society of Ontario, 1894)

The Biological review of Ontario - Biological Society of Ontario (Biological Society of Ontario, 1894)

A biological survey of Alabama. I. Physiography and life zones. II. The mammals - Howell, Arthur H. (Arthur Holmes), 1872 -1940 (Government Printing Office, 1921)

A biological survey of the sand dune region on the south shore of Saginaw Bay, Michigan - Michigan. Geological Survey. (Wynkoop, Hallenbeck, Crawford co., state printers, 1911)

The biology of the lynx, Felis (Lynx) canadensis (Kerr) in Alberta and the Mackenzie District, N.W.T - Van Zyll de Jong, C. G. (University of Alberta, Dept. of Zoology, 1963)

Biophysical inventory, significant, sensitive and disturbance features of the Whaleback area - Geowest Environmental Consultants Ltd. (GEOWEST Environmental Consultants Ltd, 1997)

Biophysical overview, significant, sensitive and disturbance features of the Eagle Butte sensitive area - Geowest Environmental Consultants Ltd. (GEOWEST Environmental Consultants Ltd, 1996)

Biophysical overview, significant, sensitive and disturbance features of the Saddle Hills, Alberta - Bentz, Jerry A. (GEOWEST Environmental Consultants Ltd, 1999)

Biosphere Reserves, Compilation 4, October 1986: programme on man and the biosphere (MAB) (1986)

Biosphere Reserves, Compilation 5, October 1990: programme on man and the biosphere (MAB) (1990)

Birch Creek aquatic habitat management plan : wildlife habitat area (I-3 WHA-A-L) - United States. Bureau of Land Management. Idaho Falls District. (U.S. Department of the Interior, Bureau of Land Management, Idaho Falls District, 1976)

Bird behaviour psychical and physiological - Finn, Frank, 1868 -1932 (Dodd, Mead, 1919)