APA (7th ed.) Citation

Chase, A., & Hitchcock, A. S. (1915). Tropical North American species of Panicum. U.S. Government Printing Office.

Chicago Style (17th ed.) Citation

Chase, Agnes, and A. S. Hitchcock. Tropical North American Species of Panicum. [Place of publication not identified]: U.S. Government Printing Office, 1915.

MLA (9th ed.) Citation

Chase, Agnes, and A. S. Hitchcock. Tropical North American Species of Panicum. U.S. Government Printing Office, 1915.