Hess, K. (1992). Visions upon the land: Man and nature on the western range. Island Press.
Cita Chicago Style (17a ed.)Hess, Karl. Visions upon the Land: Man and Nature on the Western Range. Washington, D.C.: Island Press, 1992.
Cita MLA (8a ed.)Hess, Karl. Visions upon the Land: Man and Nature on the Western Range. Island Press, 1992.
Precaución: Estas citas no son 100% exactas.