Record Citations
APA (7th ed.) Citation
National Geographic Society (U.S.). (1992). Mysteries of mankind: Earth's unexplained landmarks. The Society.
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Chicago Style (17th ed.) Citation
National Geographic Society (U.S.). Mysteries of Mankind: Earth's Unexplained Landmarks. Washington, D.C.: The Society, 1992.
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MLA (9th ed.) Citation
National Geographic Society (U.S.). Mysteries of Mankind: Earth's Unexplained Landmarks. The Society, 1992.
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Warning: These citations may not always be 100% accurate.
