Worster, D. (1994). Under western skies: Nature and history in the American West. Oxford University Press.
Style de citation Chicago (17e éd.)Worster, Donald. Under Western Skies: Nature and History in the American West. New York: Oxford University Press, 1994.
Style de citation MLA (8e éd.)Worster, Donald. Under Western Skies: Nature and History in the American West. Oxford University Press, 1994.
Attention : ces citations peuvent ne pas être correctes à 100%.