APA

Osborn H. F., . (1923). Seventh year of the Tropical Research Station of the New York Zoological Society. : .

Chicago

Osborn Henry Fairfield, . 1923. Seventh year of the Tropical Research Station of the New York Zoological Society. : .

Harvard

Osborn H. F., . (1923). Seventh year of the Tropical Research Station of the New York Zoological Society. : .

MLA

Osborn Henry Fairfield, . Seventh year of the Tropical Research Station of the New York Zoological Society. : . 1923.