APA (7th ed.) Citation

Mickel, J. T. (1979). The fern genus Cheilanthes in continental United States ([Sonderdr.].).

Chicago Style (17th ed.) Citation

Mickel, John T. The Fern Genus Cheilanthes in Continental United States. [Sonderdr.]. 1979.

MLA (9th ed.) Citation

Mickel, John T. The Fern Genus Cheilanthes in Continental United States. [Sonderdr.]. 1979.

Warning: These citations may not always be 100% accurate.