APA (7th ed.) Citation

Dale Bruce & Page, J. (1998). The american southwest: Land of challenge and promise. National Geographic Society.

Chicago Style (17th ed.) Citation

Dale Bruce and Jake Page. The American Southwest: Land of Challenge and Promise. Washington: National Geographic Society, 1998.

MLA (9th ed.) Citation

Dale Bruce and Jake Page. The American Southwest: Land of Challenge and Promise. National Geographic Society, 1998.