APA (7th ed.) Citation

Manwell, R. D. (1968). Introduction to protozoology (2d rev. ed.). Dover Publications.

Chicago Style (17th ed.) Citation

Manwell, Reginald D. Introduction to Protozoology. 2d rev. ed. New York: Dover Publications, 1968.

MLA (9th ed.) Citation

Manwell, Reginald D. Introduction to Protozoology. 2d rev. ed. Dover Publications, 1968.