Style de citation APA (7e éd.)

Helzer, C. (2010). The ecology and management of prairies in the central United States. Published for the Nature Conservancy by the University of Iowa Press.

Style de citation Chicago (17e éd.)

Helzer, Chris. The Ecology and Management of Prairies in the Central United States. Iowa City: Published for the Nature Conservancy by the University of Iowa Press, 2010.

Style de citation MLA (8e éd.)

Helzer, Chris. The Ecology and Management of Prairies in the Central United States. Published for the Nature Conservancy by the University of Iowa Press, 2010.