APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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