APA (7th ed.) Citation

Hartman, O. (1939). The polychaetous annelids collected on the presidential cruise of 1938.

Chicago Style (17th ed.) Citation

Hartman, Olga. The Polychaetous Annelids Collected on the Presidential Cruise of 1938. Washington, 1939.

MLA (9th ed.) Citation

Hartman, Olga. The Polychaetous Annelids Collected on the Presidential Cruise of 1938. 1939.

Warning: These citations may not always be 100% accurate.