APA (7th ed.) Citation

Linsley, R. M., & Yochelson, E. L. (1973). Devonian carrier shells (Euomphalidae) from North America and Germany. U.S. Govt. Print. Off.

Chicago Style (17th ed.) Citation

Linsley, Robert M., and Ellis L. Yochelson. Devonian Carrier Shells (Euomphalidae) from North America and Germany. Washington: U.S. Govt. Print. Off, 1973.

MLA (9th ed.) Citation

Linsley, Robert M., and Ellis L. Yochelson. Devonian Carrier Shells (Euomphalidae) from North America and Germany. U.S. Govt. Print. Off, 1973.