APA-referens (7:e uppl.)
Conservation History Association of Texas, Todd, D., & Weisman, D. (2010). The Texas Legacy Project: Stories of courage and conservation. Texas A&M University Press.
Chicago-referens (17:e uppl.)
Conservation History Association of Texas, David Todd, och David Weisman. The Texas Legacy Project: Stories of Courage and Conservation. College Station: Texas A&M University Press, 2010.
MLA-referens (9:e uppl.)
Conservation History Association of Texas, et al. The Texas Legacy Project: Stories of Courage and Conservation. Texas A&M University Press, 2010.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.