Mémoires de l'Académie impériale des sciences de St.-Pétersbourg. 6e série. Seconde partie, Sciences naturelles - Imperatorskai︠a︡ akademīi︠a︡ nauk (Russia) ([Académie impériale des sciences de St.-Pétersbourg], 1855)

Mémoires de l'Académie impériale des sciences de St.-Pétersbourg. 7e série - Imperatorskai︠a︡ akademīi︠a︡ nauk (Russia) (L'Académie, 1866)

Mémoires de l'Académie impériale des sciences de St.-Pétersbourg. 7e série - Imperatorskai︠a︡ akademīi︠a︡ nauk (Russia) (L'Académie, 1868)

Mémoires de l'Académie impériale des sciences de St.-Pétersbourg. 7e série - Imperatorskai︠a︡ akademīi︠a︡ nauk (Russia) (L'Académie, 1869)

Mémoires de l'Académie impériale des sciences de St.-Pétersbourg. 7e série - Imperatorskai︠a︡ akademīi︠a︡ nauk (Russia) (L'Académie, 1874)

Mémoires de l'Académie impériale des sciences de St.-Pétersbourg. 7e série - Imperatorskai︠a︡ akademīi︠a︡ nauk (Russia) (L'Académie, 1887)

Mémoires de l'Académie impériale des sciences de St.-Pétersbourg. 7e série - Imperatorskai︠a︡ akademīi︠a︡ nauk (Russia) (L'Académie, 1892)

Mémoires de l'Académie (royale) des sciences de l'Institut (imperial) de France - Académie royale des sciences (France) (1842)

Mémoires du Muséum d'histoire naturelle - Muséum national d'histoire naturelle (France) (G. Dufour, 1822)

Mémoires du Muséum d'histoire naturelle - Muséum national d'histoire naturelle (France) (G. Dufour, 1823)

Mémoires du Muséum d'histoire naturelle - Muséum national d'histoire naturelle (France) (G. Dufour, 1832)

Mémoires du Muséum national d'histoire naturelle - Muséum national d'histoire naturelle (France) (Éd. du Muséum, 2000)

Mémoires du Muséum national d'histoire naturelle. Série A, Zoologie - Muséum national d'histoire naturelle (France) (Éd. du Muséum, 1982)

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 Museum of Comparative Zoölogy, at Harvard College, Cambridge, Mass - Harvard University. Museum of Comparative Zoology. (The Museum, 1911)

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

Memorias da Academia Real das Sciencias de Lisboa. Classe de sciencias mathematicas, physicas e naturaes - Academia Real das Sciencias de Lisboa. (A Academia, 1857)

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, 1861)

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

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

Memorie della Società italiana di scienze naturali e del Museo civico di storia naturale di Milano - Museo civico di storia naturale di Milano. (La Società, 2008)

Mexico, April 21, 1898 - May 1, 1899 - Goldman, Edward Alphonso, 1873 -1946 (1898)

Mexico, August 31, 1897 - April 20, 1898 - Goldman, Edward Alphonso, 1873 -1946 (1897)

Mexico, mammal and bird notes, 1897-1898 - Goldman, Edward Alphonso, 1873 -1946 (1897)

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)

Miscellaneous notes on mammals - Mearns, Edgar Alexander, 1856 -1916 (1856)

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, 1969)

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

Mission Pavie Indo-Chine, 1879-1895. Études diverses - Pavie, Auguste, 1847 -1925 (E. Leroux, 1898)

Mitteilungen der Botanischen Staatssammlung München - Botanische Staatssammlung München. (H. Merxmüller, 1973)

Mitteilungen der Botanischen Staatssammlung München - Botanische Staatssammlung München. (H. Merxmüller, 1990)

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

Monographie der oestriden - Kaiserlich-Königliche Zoologisch-Botanische Gesellschaft in Wien. (Druck von C. Ueberreuter, 1863)

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

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

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

Morphologisches Jahrbuch (Wilhelm Engelmann, 1876)

Mostly mammals, zoological essays - Lydekker, Richard, 1849 -1915 (Dodd Mead, 1903)

Mostly mammals, zoological essays - Lydekker, Richard, 1849 -1915 (Hutchinson & Co, 1903)

Mostly mammals zoological essays - Lydekker, Richard, 1849 -1915 (Musson, 1905)

Mostly mammals : zoological essays - Lydekker, Richard, 1849 -1915 (Dodd Mead, 1903)

The mountain - Jackson, Robert Montgomery Smith, 1815 -1865 (J. B. Lippincott & Co, 1860)

Mt. Trumbull ecosystem restoration project : annual report for the year, October 1, 1998 to September 30, 1999 - United States. Bureau of Land Management. (Northern Arizona University, 1999)

The museum of natural history; being a popular account of the structure, habits, and classification of the various departments of the animal kingdom: quadrupeds, birds, reptiles, fishes, shells, and insects, including the insects destructive to agriculture - Holder, Joseph B. (Joseph Bassett), 1824 -1888 (J. S. Virtue, 1877)

My first summer in the Sierra - Muir, John, 1838 -1914 (Houghton Mifflin, 1911)

Die Myoxidae oder Schlaefer. Ein Beitrag zur Osteologie und Systematik der Nagethiere - Reuvens, C. L. (P.W.M. Trap, 1890)

Name that animal; a guide to the identification of the common land and fresh-water animals of the United States, with special reference to the area east of the Rockies - Driver, Ernest Charles, 1899 - (1950)

Narrative of a journey across the Rocky Mountains, to the Columbia River, and a visit to the Sandwich Islands, Chili, &c.; with a scientific appendix - Townsend, John Kirk, 1809 -1851 (H. Perkins, 1839)