Citazione Stile APA (7a Edizione)

Van Dyke, J. C. (1991). The open spaces: Incidents of nights and days under the blue sky. University of Utah Press.

Citazione stile Chigago Style (17a edizione)

Van Dyke, John Charles. The Open Spaces: Incidents of Nights and Days Under the Blue Sky. Salt Lake City: University of Utah Press, 1991.

Citatione MLA (8a ed.)

Van Dyke, John Charles. The Open Spaces: Incidents of Nights and Days Under the Blue Sky. University of Utah Press, 1991.