APA (7th ed.) Citation

Van Eseltine, G. P. (1918). Allies of Selaginella rupestris in Southeastern U.S. U.S. Government Printing Office.

Chicago Style (17th ed.) Citation

Van Eseltine, G. P. Allies of Selaginella Rupestris in Southeastern U.S. [Place of publication not identified]: U.S. Government Printing Office, 1918.

MLA (9th ed.) Citation

Van Eseltine, G. P. Allies of Selaginella Rupestris in Southeastern U.S. U.S. Government Printing Office, 1918.