Corbett, J. B. (2013). Seven summers: A naturalist homesteads in the modern West. University of Utah Press.
Chicago-referens (17:e uppl.)Corbett, Julia B. Seven Summers: A Naturalist Homesteads in the Modern West. Salt Lake City: University of Utah Press, 2013.
MLA-referens (9:e uppl.)Corbett, Julia B. Seven Summers: A Naturalist Homesteads in the Modern West. University of Utah Press, 2013.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.