Worster, D. (1992). Under western skies : nature and history in the American West / Donald Worster: Nature and history in the American West. Oxford University Press.
Chicago Style (17th ed.) CitationWorster, Donald. Under Western Skies : Nature and History in the American West / Donald Worster: Nature and History in the American West. New York ; Oxford: Oxford University Press, 1992.
MLA (9th ed.) CitationWorster, Donald. Under Western Skies : Nature and History in the American West / Donald Worster: Nature and History in the American West. Oxford University Press, 1992.
Warning: These citations may not always be 100% accurate.