National Geographic Society, Washington, D.C, Kelly, T., Rosenfeld, M., & Simon, T. (1989). Volcano! The Society.
Chicago Style (17th ed.) CitationNational Geographic Society, Washington, D.C, Tim Kelly, Michael Rosenfeld, and Tom Simon. Volcano! Washington, D.C: The Society, 1989.
MLA (9th ed.) CitationNational Geographic Society, Washington, D.C, et al. Volcano! The Society, 1989.
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