APA (7th ed.) Citation

Sexton, C. W. (2008). Butterflies and moths (lepidoptera) of Balcones Canyonlands National Wildlife Refuge (Rev., Sept 18, 2008.). [U.S. Dept. of the Interior, U.S. Fish and Wildlife Service].

Chicago Style (17th ed.) Citation

Sexton, Charles W. Butterflies and Moths (lepidoptera) of Balcones Canyonlands National Wildlife Refuge. Rev., Sept 18, 2008. [Washington, D.C.]: [U.S. Dept. of the Interior, U.S. Fish and Wildlife Service], 2008.

MLA (9th ed.) Citation

Sexton, Charles W. Butterflies and Moths (lepidoptera) of Balcones Canyonlands National Wildlife Refuge. Rev., Sept 18, 2008. [U.S. Dept. of the Interior, U.S. Fish and Wildlife Service], 2008.