Cita APA (7th ed.)
Walker, R., & Harding, K. (2012). Tourism 1. Student's book & Teacher's resource book (1a ed.). Oxford English for Careers.
Cita Chicago (17th ed.)
Walker, Robin, i Keith Harding. Tourism 1. Student's Book & Teacher's Resource Book. 1a ed. New York: Oxford English for Careers, 2012.
Cita MLA (9th ed.)
Walker, Robin, i Keith Harding. Tourism 1. Student's Book & Teacher's Resource Book. 1a ed. Oxford English for Careers, 2012.
Atenció: Aquestes cites poden no estar 100% correctes.