APA (7th ed.) Citation

Piper, C. V. (1920). Study of Allocarya. U.S. Government Printing Office.

Chicago Style (17th ed.) Citation

Piper, Charles V. Study of Allocarya. [Place of publication not identified]: U.S. Government Printing Office, 1920.

MLA (9th ed.) Citation

Piper, Charles V. Study of Allocarya. U.S. Government Printing Office, 1920.