Harper, D., & Wright, A. (2012). National Geographic traveler: China (Third edition.). National Geographic Society.
Citazione stile Chigago Style (17a edizione)Harper, Damian, e Alison Wright. National Geographic Traveler: China. Third edition. Washington, D.C: National Geographic Society, 2012.
Citatione MLA (9a ed.)Harper, Damian, e Alison Wright. National Geographic Traveler: China. Third edition. National Geographic Society, 2012.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.