Cita APA

National Geographic Society (U.S.). Special Publications Division. (1983). Preserving America's past. The Society.

Citación estilo Chicago

National Geographic Society (U.S.). Special Publications Division. Preserving America's Past. Washington, D.C: The Society, 1983.

Cita MLA

National Geographic Society (U.S.). Special Publications Division. Preserving America's Past. The Society, 1983.

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