APA (7th ed.) Citation

Hegner, R. W. (1938). Big fleas have little fleas: Or Who's who among the protozoa. Williams & Wilkins.

Chicago Style (17th ed.) Citation

Hegner, Robert William. Big Fleas Have Little Fleas: Or Who's Who Among the Protozoa. Baltimore: Williams & Wilkins, 1938.

MLA (9th ed.) Citation

Hegner, Robert William. Big Fleas Have Little Fleas: Or Who's Who Among the Protozoa. Williams & Wilkins, 1938.