APA (7th ed.) Citation

Cartwright, O. L., & Wooddruff, R. E. (1969). Ten rhyparus from the western hemisphere, Coleoptera: Scarabaeidae: Aphodiinae. Smithsonian Institution.

Chicago Style (17th ed.) Citation

Cartwright, Oscar L., and Robert E. Wooddruff. Ten Rhyparus from the Western Hemisphere, Coleoptera: Scarabaeidae: Aphodiinae. Washington, D.C: Smithsonian Institution, 1969.

MLA (9th ed.) Citation

Cartwright, Oscar L., and Robert E. Wooddruff. Ten Rhyparus from the Western Hemisphere, Coleoptera: Scarabaeidae: Aphodiinae. Smithsonian Institution, 1969.