Style de citation APA (7e éd.)

Folley, P. (2012). The Guide to Oklahoma Wildflowers. University of Iowa Press.

Style de citation Chicago (17e éd.)

Folley, Patricia. The Guide to Oklahoma Wildflowers. Iowa City: University of Iowa Press, 2012.

Style de citation MLA (8e éd.)

Folley, Patricia. The Guide to Oklahoma Wildflowers. University of Iowa Press, 2012.