APA (7th ed.) Citation

National Geographic Society (U.S.). Special Publications Division & Melham, T. (1989). Great American journeys. The Society.

Chicago Style (17th ed.) Citation

National Geographic Society (U.S.). Special Publications Division and Tom Melham. Great American Journeys. Washington, D.C: The Society, 1989.

MLA (9th ed.) Citation

National Geographic Society (U.S.). Special Publications Division and Tom Melham. Great American Journeys. The Society, 1989.