APA Citation

Kummel, B. (1953). American Triassic coiled nautiloids. Washington: U. S. Govt. Print. Off..

Chicago Style Citation

Kummel, Bernhard. American Triassic Coiled Nautiloids. Washington: U. S. Govt. Print. Off., 1953.

MLA Citation

Kummel, Bernhard. American Triassic Coiled Nautiloids. Washington: U. S. Govt. Print. Off., 1953.

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