APA (7th ed.) Citation

Trelease, W. (1927). Piperaceae of Panama. U.S. Government Printing Office.

Chicago Style (17th ed.) Citation

Trelease, William. Piperaceae of Panama. [Place of publication not identified]: U.S. Government Printing Office, 1927.

MLA (8th ed.) Citation

Trelease, William. Piperaceae of Panama. U.S. Government Printing Office, 1927.