Decker, R., & Decker, B. (1981). Volcanoes / by Robert Decker and Barbara Decker. W. H. Freeman.
Chicago Style (17th ed.) CitationDecker, Robert, and Barbara Decker. Volcanoes / by Robert Decker and Barbara Decker. San Francisco: W. H. Freeman, 1981.
MLA (9th ed.) CitationDecker, Robert, and Barbara Decker. Volcanoes / by Robert Decker and Barbara Decker. W. H. Freeman, 1981.
Warning: These citations may not always be 100% accurate.