APA (7th ed.) Citation

Mamay, S. H. (1962). Occurrence and significance of marine animal remains in American coal balls. U.S. Govt. Print. Off.

Chicago Style (17th ed.) Citation

Mamay, Sergius H. Occurrence and Significance of Marine Animal Remains in American Coal Balls. Washington: U.S. Govt. Print. Off, 1962.

MLA (9th ed.) Citation

Mamay, Sergius H. Occurrence and Significance of Marine Animal Remains in American Coal Balls. U.S. Govt. Print. Off, 1962.