Cita APA (7th ed.)

National Geographic Society (U.S.) Special Publications Division. (1979). Mysteries of the ancient world. The Society.

Cita Chicago (17th ed.)

National Geographic Society (U.S.) Special Publications Division. Mysteries of the Ancient World. Washington: The Society, 1979.

Cita MLA (9th ed.)

National Geographic Society (U.S.) Special Publications Division. Mysteries of the Ancient World. The Society, 1979.