APA (7th ed.) Citation

Walker R. Robin & Harding K. Keith. (2011). Tourism 1: Teacher's Resource Book. New York, Oxford University Press, 2011.

Chicago Style (17th ed.) Citation

Walker R. Robin and Harding K. Keith. Tourism 1: Teacher's Resource Book. New York, Oxford University Press, 2011, 2011.

MLA (9th ed.) Citation

Walker R. Robin and Harding K. Keith. Tourism 1: Teacher's Resource Book. New York, Oxford University Press, 2011, 2011.