APA-referens (7:e uppl.)
Turner, J. M. (2012). The promise of wilderness: American environmental politics since 1964. University of Washington.
Chicago-referens (17:e uppl.)
Turner, James Morton. The Promise of Wilderness: American Environmental Politics Since 1964. Seattle, Wash: University of Washington, 2012.
MLA-referens (9:e uppl.)
Turner, James Morton. The Promise of Wilderness: American Environmental Politics Since 1964. University of Washington, 2012.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.