APA (7th ed.) Citation

Allan, J. A., & Warren, A. (1993). Deserts: The encroaching wilderness : a world conservation atlas. Oxford University Press.

Chicago Style (17th ed.) Citation

Allan, J. A., and Andrew Warren. Deserts: The Encroaching Wilderness : A World Conservation Atlas. New York: Oxford University Press, 1993.

MLA (9th ed.) Citation

Allan, J. A., and Andrew Warren. Deserts: The Encroaching Wilderness : A World Conservation Atlas. Oxford University Press, 1993.