APA (7th ed.) Citation

Ladd, H. S. (1957). Treatise on marine ecology and paleoecology: Paleoecology. The Geological Society of America.

Chicago Style (17th ed.) Citation

Ladd, Harry S. Treatise on Marine Ecology and Paleoecology: Paleoecology. New York: The Geological Society of America, 1957.

MLA (9th ed.) Citation

Ladd, Harry S. Treatise on Marine Ecology and Paleoecology: Paleoecology. The Geological Society of America, 1957.