Boletim do Museu Goeldi (Museu Paraense) de Historia Natural e Ethnographia - Museu Goeldi. (Estabelecimento Graphice de C. Wiegandt, 1911)

Boletim do Museu Paraense de Historia Natural e Ethnographia (Museu Goeldi) - Museu Goeldi. (Typ. e Encadernação do Instituto Lauro Sodré, 1900)

Boletin de la Sociedad de Biología de Concepción - Sociedad de Biología de Concepción. ([Universidad de Concepción], 1998)

Boletín de la Sociedad Physis - Sociedad Physis. (Coni, 1912)

Bollettino dei musei di zoologia ed anatomia comparata della R. Università di Torino - Università di Torino. Musei di zoologia ed anatomia comparata. (Accame, 1900)

Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn - Zoologisches Forschungsinstitut und Museum Alexander Koenig. (Das Forschungsinstitut, 1953)

Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn - Zoologisches Forschungsinstitut und Museum Alexander Koenig. (Das Forschungsinstitut, 1978)

Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn - Zoologisches Forschungsinstitut und Museum Alexander Koenig. (Das Forschungsinstitut, 1986)

Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn - Zoologisches Forschungsinstitut und Museum Alexander Koenig. (Das Forschungsinstitut, 1989)

A book of birds - Pycraft, W. P. (William Plane), 1868 -1942 (Sidney Appleton, 1908)

The book of birds : common birds of town and country and American game birds - Fuertes, Louis Agassiz, 1874 -1927 (National Geographic Society, 1918)

The book of birds; common birds of town and country and American game birds - Fuertes, Louis Agassiz, 1874 -1927 (National Geographic Society, 1921)

Brehms thierleben, allgemeine kunde des thierreichs - Brehm, Alfred Edmund, 1829 -1884 (Verlag des Bibliographischen instituts, 1878)

Brehms Tierleben; allgemeine kunde des thierreichs. Mit 1910 abbildungen im text, 11 karten und 180 tafeln in farbendruck und holzschnitt - Brehm, Alfred Edmund, 1829 -1884 (Bibliographisches Institute, 1893)

Brehms Tierleben : allgemeine Kunde des Tierreichs : mit 1800 Abbildungen im Text, 9 Karten und 180 Tafeln in Farbendruck und Holzschnitt - Brehm, Alfred Edmund, 1829 -1884 (Bibliographisches Institut, 1891)

Brehms Tierleben. Allgemeine kunde des Tierreichs - Werner, Franz, 1867 -1939 (Bibliographisches Institut, 1911)

British birds (1928)

British birds (1930)

British birds (1932)

British birds (1998)

British birds (2009)

British birds (2015)

Brothers EIS area in Central Oregon : wildlife habitat interrelationships : working draft - United States. Bureau of Land Management. Oregon State Office. (Bureau of Land Management, Oregon State Office, 1982)

Bulletin - Ridgway Ornithological Club. (American field, 1887)

Bulletin - Colorado Agricultural Experiment Station (Colorado State University Experiment Station, 1898)

Bulletin - United States National Museum (G.P.O, 1909)

Bulletin - Essex County Ornithological Club of Massachusetts. (1931)

Bulletin - Pacific Seabird Group. (The Group, 1989)

Bulletin - United States National Museum (G.P.O, 1950)

Bulletin - United States National Museum (G.P.O, 1914)

Bulletin - National Museum of Canada. (National Museum of Canada, 1926)

Bulletin - National Museum of Canada. (National Museum of Canada, 1934)

Bulletin - United States National Museum (G.P.O, 1926)

Bulletin - United States National Museum (G.P.O, 1927)

Bulletin - United States National Museum (G.P.O, 1931)

Bulletin - United States National Museum (G.P.O, 1938)

Bulletin - United States National Museum (G.P.O, 1940)

Bulletin - United States National Museum (G.P.O, 1942)

Bulletin - United States National Museum (G.P.O, 1845)

Bulletin - United States National Museum (G.P.O, 1947)

Bulletin - United States National Museum (G.P.O, 1955)

Bulletin - United States National Museum (G.P.O, 1961)

Bulletin - National Museum of Canada. (National Museum of Canada, 1946)

Bulletin - Biological Survey - United States. Bureau of Biological Survey. (Govt. print. off, 1888)

Bulletin - Biological Survey - United States. Bureau of Biological Survey. (Govt. print. off, 1906)

Bulletin - Biological Survey - United States. Bureau of Biological Survey. (Govt. print. off, 1911)

Bulletin from the laboratories of natural history of the State University of Iowa - University of Iowa. (The University, 1893)

Bulletin - Illinois. Natural History Survey Division (State of Illinois, Dept. of Registration and Education, Natural History Survey Division, 1961)

Bulletin of the American Museum of Natural History - Allen, J. A. (Joel Asaph), 1838 -1921 (American Museum of Natural History, 1908)

Bulletin of the American Museum of Natural History - Allen, J. A. (Joel Asaph), 1838 -1921 (American Museum of Natural History, 1922)