APA (7th ed.) Citation

Copeland, H. F. (1956). The classification of lower organisms. Pacific Books.

Chicago Style (17th ed.) Citation

Copeland, Herbert Faulkner. The Classification of Lower Organisms. Palo Alto, Calif.: Pacific Books, 1956.

MLA (9th ed.) Citation

Copeland, Herbert Faulkner. The Classification of Lower Organisms. Pacific Books, 1956.