List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1978)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1965)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1952)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1949)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1970)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1966)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1967)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1954)

A List of the insects of New York : with a list of the spiders and certain other allied groups - Leonard, Mortimer Demarest, 1890 - (Cornell University, 1928)

List of works relating to the natural history departments of the British Museum, to the end of the year 1910 - British Museum (Natural History) (Trustees of the British Museum, 1911)

Literature on wildlife research in the Madrean Archipelago, 1800s-1994 - Rocky Mountain Forest; Range Experiment Station (Fort Collins, Colo.) (U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, 1997)

Living bird - Cornell University. Laboratory of Ornithology. (Cornell Laboratory of Ornithology, 1966)

Living bird - Cornell University. Laboratory of Ornithology. (Cornell Laboratory of Ornithology, 1971)

Living bird - Cornell University. Laboratory of Ornithology. (Cornell Laboratory of Ornithology, 1979)

The living world: a complete natural history of the world's creatures, fishes, reptiles, insects, birds and mammals - Buel, James W. (James William), 1849 -1920 (Holloway & co, 1889)

London Naturalist - London Natural History Society. (London Natural History Society, 1948)

London Naturalist - London Natural History Society. (London Natural History Society, 1957)

London Naturalist - London Natural History Society. (London Natural History Society, 1959)

London Naturalist - London Natural History Society. (London Natural History Society, 1967)

London Naturalist - London Natural History Society. (London Natural History Society, 1973)

London Naturalist - London Natural History Society. (London Natural History Society, 1977)

London Naturalist - London Natural History Society. (London Natural History Society, 1985)

London Naturalist - London Natural History Society. (London Natural History Society, 1991)

London Naturalist - London Natural History Society. (London Natural History Society, 1997)

London Naturalist - London Natural History Society. (London Natural History Society, 1999)

London Naturalist - London Natural History Society. (London Natural History Society, 2000)

London Naturalist - London Natural History Society. (London Natural History Society, 2001)

London Naturalist - London Natural History Society. (London Natural History Society, 2002)

Long Island Botanical Society newsletter - Long Island Botanical Society. (Long Island Botanical Society, 2012)

Long-term evaluation of the effects of Bacillus thuringiensis kurstaki, gypsy moth nucleopolyhedrosis virus product Gypchek, and Entomophaga maimaiga on nontarget organisms in mixed broadleaf-pine forests in the central Appalachians - Butler, Linda, 1943 - (U.S. Dept. of Agriculture, Forest Service, FHTET, 2004)

Madera y bosques - Instituto de Ecología, A C. (Instituto de Ecología, A C, 2014)

Madroño; a West American journal of botany - California Botanical Society. (California Botanical Society, 1980)

Madroño; a West American journal of botany - California Botanical Society. (California Botanical Society, 1979)

Madroño; a West American journal of botany - California Botanical Society. (California Botanical Society, 1988)

Madroño; a West American journal of botany - California Botanical Society. (California Botanical Society, 1996)

Madroño; a West American journal of botany - California Botanical Society. (California Botanical Society, 1998)

Madroño; a West American journal of botany - California Botanical Society. (California Botanical Society, 2000)

Madroño; a West American journal of botany - California Botanical Society. (California Botanical Society, 2009)

Madroño; a West American journal of botany - California Botanical Society. (California Botanical Society, 2010)

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

Malacologia - Institute of Malacology. (Institute of Malacology], 1973)

Malacologia - Institute of Malacology. (Institute of Malacology], 1999)

Malesia; raccolta di osservazioni botaniche intorno alle piante dell'arcipelago Indo-Malese e Papuano pubblicata da Odoardo Beccari, destinata principalmente a descrivere ed illustrare le piante da esso raccolte in quelle regioni durante i viaggi eseguiti dall'anno 1865 all'anno 1878 ... - Beccari, Odoardo, 1843 -1920 (Tip. del R. Instituto sordo-muti, 1884)

Malimbus : journal of the West African Ornithological Society - West African Ornithological Society. (Ahmadu Bello University Press, 1981)

Malimbus : journal of the West African Ornithological Society - West African Ornithological Society. (Ahmadu Bello University Press, 1993)

Malimbus : journal of the West African Ornithological Society - West African Ornithological Society. (Ahmadu Bello University Press, 1996)

Mammalian diversity and Matses ethnomammalogy in Amazonian Peru. Part 2, Xenarthra, Carnivora, Perissodactyla, Artiodactyla, and Sirenia - Voss, Robert S. (American Museum of Natural History, 2017)

Mantis Study Group newsletter - Mantis Study Group. (Mantis Study Group, 1998)

Manual de plantas de Costa Rica - Hammel, Barry Edward, 1946 - (Missouri Botanical Garden, 2004)

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 (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, 1923)

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 (Comstock Publishing Company, 1904)

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, 1918)

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

A manual of forestry - Schlich, William, Sir, 1840 -1925 (Bradbury, Agnew, 1907)

A manual of natural history, for the use of travellers : being a description of the families of the animal and vegetable kindgoms: with remarkable on the practical study of geology and meteorology. To which are appended directions for collecting and preserving - Adams, Arthur, 1820 -1878 (J. Van Voorst, 1854)

A manual of palæontology for the use of students : with a general introduction on the principles of palaeontology - Nicholson, Henry Alleyne, 1844 -1899 (Blackwood, 1872)

A manual of palæontology, for the use of students; with a general introduction on the principles of palæontology - Nicholson, Henry Alleyne, 1844 -1899 (W. Blackwood and sons, 1879)

Manual of tropical medicine - Chalmers, Albert John, 1870 -1920 (Baillière, Tindall and Cox, 1919)

A manual of zoology for the use of students : with a general introduction on the principles of zoology - Nicholson, Henry Alleyne, 1844 -1899 (D. Appleton, 1877)

Marcellia - Institut de botanique de Strasbourg. (Pergamon Press [etc.], 1905)

Marcellia - Institut de botanique de Strasbourg. (Pergamon Press [etc.], 1908)

Maryland entomologist - Maryland Entomological Society. (Maryland Entomological Society, 1977)

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

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

Maryland entomologist - Maryland Entomological Society. (Maryland Entomological Society, 2009)

Maryland entomologist - Maryland Entomological Society. (Maryland Entomological Society, 2010)

Maryland entomologist - Maryland Entomological Society. (Maryland Entomological Society, 2011)

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

Maryland entomologist - Maryland Entomological Society. (Maryland Entomological Society, 2013)

Maryland entomologist - Maryland Entomological Society. (Maryland Entomological Society, 2014)

Maryland entomologist - Maryland Entomological Society. (Maryland Entomological Society, 2015)

Maryland entomologist - Maryland Entomological Society. (Maryland Entomological Society, 2016)

Maryland entomologist - Maryland Entomological Society. (Maryland Entomological Society, 2017)

Maryland entomologist - Maryland Entomological Society. (Maryland Entomological Society, 2018)

Maryland entomologist - Maryland Entomological Society. (Maryland Entomological Society, 2019)

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

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