Todd, G., & Rice, S. (1991). Travel perspectives: A guide to becoming a travel agent. Delmar.
Cita Chicago (17th ed.)Todd, Ginger, i Susan Rice. Travel Perspectives: A Guide to Becoming a Travel Agent. Albany: Delmar, 1991.
Cita MLA (9th ed.)Todd, Ginger, i Susan Rice. Travel Perspectives: A Guide to Becoming a Travel Agent. Delmar, 1991.
Atenció: Aquestes cites poden no estar 100% correctes.