Mémoires du Muséum national d'histoire naturelle Série A Zoologie - Muséum national d'histoire naturelle (France) (Éd. du Muséum, 1988)

Mémoires présentés à l'Académie impériale des Sciences de St. Petersbourg par divers Savans et dans ses assemblées - Imperatorskai︠a︡ akademīi︠a︡ nauk (Russia) (1855)

Memoirs of the Carnegie Museum - Carnegie Institute. Board of Trustees. (Published by the authority of the Board of Trustees of the Carnegie Institute, 1932)

Memoirs of the Carnegie Museum - Carnegie Institute. Board of Trustees. (Published by the authority of the Board of Trustees of the Carnegie Institute, 1935)

Memoirs of the National Academy of Sciences - National Academy of Sciences (U.S.) (Government Printing Office, 1926)

Memorias - Academia Nacional de Ciencias Antonio Alzate, Mexico

Memorias de la Real Academia de Ciencias Exactas, Fisicas y Naturales de Madrid - Real Academia de Ciencias Exactas Físicas y Naturales de Madrid. (Impr. Aguado, 1897)

Memorias y revista de la Sociedad Científica "Antonio Alzate." - Sociedad Científica "Antonio Alzate." (Imprenta del Gobierno en el Ex-Arzobispado, 1897)

Memorias y revista de la Sociedad Científica "Antonio Alzate." - Sociedad Científica "Antonio Alzate." (Imprenta del Gobierno en el Ex-Arzobispado, 1899)

Memorie della Reale accademia delle scienze di Torino - Accademia delle scienze di Torino (Stamperia reale, 1903)

Meyers Konversations-Lexikon : eine Encyklopädie des allgemeinen Wissens - Meyer, Hermann Julius, 1826 -1909 (Verlag des Bibliographischen Instituts, 1890)

A microhistological technique for analysis of food habits of mycophagous rodents - Pacific Northwest Research Station (Portland, Or.) (U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 1989)

The microscopic anatomy of the teeth - Mummery, John Howard, 1847 - (1919)

Die mikroorganismen. Mit besonderer berücksichtigung der ätiologie der infektionskrankheiten - Flügge, Carl, 1847 -1923 (F. C. W. Vogel, 1896)

Miscellaneous publication - University of Kansas. Museum of Natural History. (University of Kansas, Natural History Museum, 1995)

Miscellaneous publication - University of Kansas, Museum of Natural History - University of Kansas. Museum of Natural History. (University of Kansas, 1956)

Miscellaneous publication - University of Kansas, Museum of Natural History - University of Kansas. Museum of Natural History. (University of Kansas, 1961)

Miscellaneous publication - University of Kansas, Museum of Natural History - University of Kansas. Museum of Natural History. (University of Kansas, 1964)

Miscellaneous publication - University of Kansas, Museum of Natural History - University of Kansas. Museum of Natural History. (University of Kansas, 1965)

Miscellaneous publication - University of Kansas, Museum of Natural History - University of Kansas. Museum of Natural History. (University of Kansas, 1974)

Mitteilungen der Bayerischen Staatssammlung für Paläontologie und Histor. Geologie - Bayerische Staatssammlung für Paläontologie und Historische Geologie München (Bayerische Staatssammlung für Paläontologie und Historische Geologie, 1966)

Mitteilungen der Geographischen Gesellschaft und des Naturhistorischen Museums in Lübeck - Geographische Gesellschaft in Lübeck (Lübcke & Nöhring, 1891)

Mitteilungen der Geographischen Gesellschaft und des Naturhistorischen Museums in Lübeck - Geographische Gesellschaft in Lübeck (Lübcke & Nöhring, 1890)

Mitteilungen des Naturwissenschaftlichen Vereines für Steiermark - Molisch, Hans, 1856 -1937 (1883)

Die Mittel zur Bekämpfung der Pflanzenkrankheiten - Hollrung, M. (Max), 1858 -1937 (P. Parey, 1914)

Mittheilungen aus dem Jahrbuche der Kgl. ungarischen Geologischen Anstalt - Magyar Királyi Földtani Intézet. (Buchdruckerei der Stum A.-G., [etc.], 1873)

Mittheilungen des Ornithologischen Vereines in Wien - Ornithologischer Verein in Wien. (Der Verein, 1878)

Mittheilungen des Ornithologischen Vereines in Wien - Ornithologischer Verein in Wien. (1889)

Mlekopitaiushchiia Kavkazskago kraia - Sakartvelos muzeumi (Impr. d'État], 1920)

A monograph of the British pleistocene mammalia - Palaeontographical Society (Great Britain) (Printed for the Palaeontographical Society, 1866)

A monograph of the British pleistocene mammalia - Palaeontographical Society (Great Britain) (Printed for the Palaeontographical Society, 1872)

Monograph of the Museum of Natural History, the University of Kansas - University of Kansas. Museum of Natural History. (The Museum, 1972)

Monograph of the Palaeontographical Society - Palaeontographical Society (Great Britain) (Printed for the Palaeontographical Society, 1866)

Monograph of the Palaeontographical Society - Palaeontographical Society (Great Britain) (Printed for the Palaeontographical Society, 1872)

Monographie des coléoptères subpentamères de la famille des phytophages - Lacordaire, Théodore, 1801 -1870 (C. Muquardt, 1845)

Monographs of North American Rodentia - Coues, Elliott, 1842 -1899 (Govt. print. off, 1877)

Monographs of North American rodentia - Coues, Elliott, 1842 -1899 (G.P.O, 1877)

Montana amphibian and reptile status assessment, literature review, and conservation plan - United States. Bureau of Land Management. (Montana Natural Heritage Program, 2009)

Montana's comprehensive fish and wildlife conservation strategy - Montana. Department of Fish, Wildlife,; Parks (Montana Fish, Wildlife and Parks, 2005)

Morphologisches Jahrbuch (Wilhelm Engelmann, 1876)

The mountains of California - Muir, John, 1838 -1914 (Houghton Mifflin Company, 1916)

The mountains of California - Muir, John, 1838 -1914 (The Century Co, 1898)

Movements, populations, and habitat preferences of three species of pocket mice (Perognathinae) in the Big Bend Region of Texas - Texas Tech University. Natural Science Research Laboratory. (Museum of Texas Tech University, 2011)

Multisar : the Milk River Basin project habitat suitability models for selected wildlife management species - Alberta. Fish; Wildlife Division. (Alberta Sustainable Resource Development, Fish & Wildlife Division, Resource Data and Species At Risk Section, 2004)