APA

American Museum of Natural History, . (1921). American Museum Novitates. New York: American Museum of Natural History.

Chicago

American Museum of Natural History, . 1921. American Museum Novitates. New York: American Museum of Natural History.

Harvard

American Museum of Natural History, . (1921). American Museum Novitates. New York: American Museum of Natural History.

MLA

American Museum of Natural History, . American Museum Novitates. New York: American Museum of Natural History. 1921.