Cita APA

National Geographic Society. Cartographic Division, Grosvenor, G. M., & Peele, W. T. (1975). Close-up U.S.A., Alaska. Washington: The Society.

Citación estilo Chicago

National Geographic Society. Cartographic Division, Gilbert M. Grosvenor, y William T. Peele. Close-up U.S.A., Alaska. Washington: The Society, 1975.

Cita MLA

National Geographic Society. Cartographic Division, Gilbert M. Grosvenor, y William T. Peele. Close-up U.S.A., Alaska. Washington: The Society, 1975.