APA (7th ed.) Citation

Decker, R., & Decker, B. (1981). Volcanoes / by Robert Decker and Barbara Decker. W. H. Freeman.

Chicago Style (17th ed.) Citation

Decker, Robert, and Barbara Decker. Volcanoes / by Robert Decker and Barbara Decker. San Francisco: W. H. Freeman, 1981.

MLA (9th ed.) Citation

Decker, Robert, and Barbara Decker. Volcanoes / by Robert Decker and Barbara Decker. W. H. Freeman, 1981.

Warning: These citations may not always be 100% accurate.