National Geographic Society (U.S.), Butzer, K. W., & Abercrombie, T. J. (1978). Ancient Egypt, discovering its splendors. National Geographic Society.
Lua i Stíl Chicago (17ú heag.)National Geographic Society (U.S.), Karl W. Butzer, agus Thomas J. Abercrombie. Ancient Egypt, Discovering Its Splendors. Washington: National Geographic Society, 1978.
Lua MLA (9ú heag.)National Geographic Society (U.S.), et al. Ancient Egypt, Discovering Its Splendors. National Geographic Society, 1978.
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