Decker, R. (1989). Volcanoes (rev. and updated ed.). Freeman.
Chicago Style (17th ed.) CitationDecker, Robert. Volcanoes. rev. and updated ed. New York: Freeman, 1989.
MLA引文Decker, Robert. Volcanoes. rev. and updated ed. Freeman, 1989.
警告:這些引文格式不一定是100%准確.