APA (7th ed.) Citation

Clark, J. A. (1893). Systematic and alphabetic index to new species of North American phanerogams and pteridophytes published in 1892. U.S. Government Printing Office.

Chicago Style (17th ed.) Citation

Clark, Josephine A. Systematic and Alphabetic Index to New Species of North American Phanerogams and Pteridophytes Published in 1892. [Washington, D.C.]: U.S. Government Printing Office, 1893.

MLA (9th ed.) Citation

Clark, Josephine A. Systematic and Alphabetic Index to New Species of North American Phanerogams and Pteridophytes Published in 1892. U.S. Government Printing Office, 1893.