The Macrolepidoptera of the world : a systematic account of all the known Macrolepidoptera - Seitz, Adalbert, 1860 -1938 (Fritz Lehmann Verlag, 1924)

The Macrolepidoptera of the world : a systematic account of all the known Macrolepidoptera - Seitz, Adalbert, 1860 -1938 (Fritz Lehmann Verlag, 1927)

The Macrolepidoptera of the world : a systematic account of all the known Macrolepidoptera - Seitz, Adalbert, 1860 -1938 (Fritz Lehmann Verlag, 1933)

The Macrolepidoptera of the world : a systematic account of all the known Macrolepidoptera - Seitz, Adalbert, 1860 -1938 (Fritz Lehmann Verlag, 1925)

The Macrolepidoptera of the world : a systematic account of all the known Macrolepidoptera - Seitz, Adalbert, 1860 -1938 (Fritz Lehmann Verlag, 1930)

The Macrolepidoptera of the world : a systematic account of all the known Macrolepidoptera - Seitz, Adalbert, 1860 -1938 (Fritz Lehmann Verlag, 1932)

Madagascar: an environmental profile (1987)

Madagascar: profil de l'environnement (1990)

Madroño; a West American journal of botany - California Botanical Society. (California Botanical Society, 1986)

Madroño; a West American journal of botany - California Botanical Society. (California Botanical Society, 2001)

Madroño; a West American journal of botany - California Botanical Society. (California Botanical Society, 2014)

MAGNT research report - Museums; Art Galleries of the Northern Territory (Museums and Art Galleries of the Northern Territory, 1999)

A manual for the study of insects - Comstock, John Henry, 1849 -1931 (Comstock, 1923)

A manual for the study of insects - Comstock, John Henry, 1849 -1931 (Kessinger Pub, 1895)

A manual for the study of insects - Comstock, John Henry, 1849 -1931 (Comstock Pub. Co, 1897)

A manual for the study of insects - Comstock, John Henry, 1849 -1931 (Comstock publishing company, inc, 1938)

A manual for the study of insects - Comstock, John Henry, 1849 -1931 (Comstock Publishing Company, 1904)

A manual for the study of insects - Comstock, John Henry, 1849 -1931 (Comstock Publishing Company, 1916)

A manual for the study of insects - Comstock, John Henry, 1849 -1931 (The Comstock Pub. Co., 1920, 1920)

A manual for the study of insects - Comstock, John Henry, 1849 -1931 (Comstock Pub. Co, 1895)

A manual for the study of insects - Comstock, John Henry, 1849 -1931 (Comstock Pub. Co, 1930)

A manual of dangerous insects likely to be introduced in the United States through importations - United States. Bureau of Entomology. (Govt. print. off, 1917)

Manual of entomology : with special reference to economic entomology - Maxwell-Lefroy, H. (Harold), 1877 -1925 (Longmans, Green & Co, 1923)

A manual of North American butterflies - Maynard, C. J. (Charles Johnson), 1845 -1929 (De Wolfe, Fiske & Co, 1891)

A manual of North American butterflies - Maynard, C. J. (Charles Johnson), 1845 -1929 (De Wolfe, Fiske, 1891)

Maryland entomologist - Maryland Entomological Society. (Maryland Entomological Society, 1978)

Maryland entomologist - Maryland Entomological Society. (Maryland Entomological Society, 1979)

Maryland entomologist - Maryland Entomological Society. (Maryland Entomological Society, 1980)

Maryland entomologist - Maryland Entomological Society. (Maryland Entomological Society, 1995)

Maryland entomologist - Maryland Entomological Society. (Maryland Entomological Society, 1998)

Maryland entomologist - Maryland Entomological Society. (Maryland Entomological Society, 2003)

Maryland entomologist - Maryland Entomological Society. (Maryland Entomological Society, 2008)

Maryland entomologist - Maryland Entomological Society. (Maryland Entomological Society, 2012)

Maryland entomologist - Maryland Entomological Society. (Maryland Entomological Society, 2020)

Maryland naturalist - Natural History Society of Maryland (The Society, 1987)

Maryland naturalist - Natural History Society of Maryland (The Society, 1993)

Matabele land and the Victoria Falls; a naturalist's wanderings in the interior of South Africa - Oates, Charles George. (Kegan Paul, Trench & Co, 1889)

Matabele land and the Victoria Falls : a naturalist's wanderings in the interior of South Africa, from the letters and journals of the late Frank Oates - Oates, Frank. (C.K. Paul, 1881)

Meadowlark - Illinois Ornithological Society. (Illinois Ornithological Society, 1999)

Meddelelser om Grønland - Denmark. Kommissionen for ledelsen af de geologiske og geografiske undersøgelser i Grønland. (C. A. Reitzels Forlag, 1918)

Mededeelingen uit 's Lands Plantentuin - 's Lands Plantentuin. (G. Kolff & Co, 1901)

Mediterranean naturalist (1891)

Memoir - Cornell University. Agricultural Experiment Station. (1921)

Mémoires du Muséum national d'histoire naturelle - Muséum national d'histoire naturelle (France) (Editions du Muséum, 1935)