Não informado. (1899). Bird lore. National Association of Audubon Societies.
Style de citation Chicago (17e éd.)Não informado. Bird Lore. New York: National Association of Audubon Societies, 1899.
Style de citation MLA (8e éd.)Não informado. Bird Lore. National Association of Audubon Societies, 1899.
Attention : ces citations peuvent ne pas être correctes à 100%.