Leonard, E. C. (1927). North American species of Scutellaria. U.S. Government Printing Office.
Chicago Style (17th ed.) CitationLeonard, Emery C. North American Species of Scutellaria. [Place of publication not identified]: U.S. Government Printing Office, 1927.
MLA (9th ed.) CitationLeonard, Emery C. North American Species of Scutellaria. U.S. Government Printing Office, 1927.
Warning: These citations may not always be 100% accurate.