APA

Chapin J. P., . (1953). The birds of the Belgian Congo. New York: Am.Museum of Natural History.

Chicago

Chapin James P, . 1953. The birds of the Belgian Congo. New York: Am.Museum of Natural History.

Harvard

Chapin J. P., . (1953). The birds of the Belgian Congo. New York: Am.Museum of Natural History.

MLA

Chapin James P, . The birds of the Belgian Congo. New York: Am.Museum of Natural History. 1953.