Welker, R. H. (1966). BIRDS and MEN: American Birds in science, art literature, and conservation, 1800 - 1900. New York: Originally published by Harvard University press.
Style de citation ChicagoWelker, Robert Henry. BIRDS and MEN: American Birds in Science, Art Literature, and Conservation, 1800 - 1900. New York: Originally published by Harvard University press, 1966.
Style de citation MLAWelker, Robert Henry. BIRDS and MEN: American Birds in Science, Art Literature, and Conservation, 1800 - 1900. New York: Originally published by Harvard University press, 1966.
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