Decker, R. W., & Decker, B. (1989). Volcanoes (Revised and updated edition.). W.H. Freeman.
Chicago Style (17. basım) AtıfDecker, Robert W., ve Barbara Decker. Volcanoes. Revised and updated edition. New York: W.H. Freeman, 1989.
MLA (9th ed.) AtıfDecker, Robert W., ve Barbara Decker. Volcanoes. Revised and updated edition. W.H. Freeman, 1989.
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