APA (7th ed.) Citation

Clark, J. A. (1892). Systematic and alphabetic index of new species of North American phanerogams and pteridophytes published in 1891-1892. U.S. Dept. of Agriculture, Division of Botany.

Chicago Style (17th ed.) Citation

Clark, Josephine Adelaide. Systematic and Alphabetic Index of New Species of North American Phanerogams and Pteridophytes Published in 1891-1892. Washington: U.S. Dept. of Agriculture, Division of Botany, 1892.

MLA (9th ed.) Citation

Clark, Josephine Adelaide. Systematic and Alphabetic Index of New Species of North American Phanerogams and Pteridophytes Published in 1891-1892. U.S. Dept. of Agriculture, Division of Botany, 1892.