APA (7th ed.) Citation

Miller, G. S., & Standley, P. C. (1912). North American species of Nymphaea. U.S. Government Printing Office.

Chicago Style (17th ed.) Citation

Miller, Gerrit S., and Paul Carpenter Standley. North American Species of Nymphaea. [Place of publication not identified]: U.S. Government Printing Office, 1912.

MLA (9th ed.) Citation

Miller, Gerrit S., and Paul Carpenter Standley. North American Species of Nymphaea. U.S. Government Printing Office, 1912.