APA ציטוט

Foster, D. L. (1991). Sales and marketing for the travel professional. New York: Glencoe.

Trích dẫn kiểu Chicago

Foster, Dennis L. Sales and Marketing for the Travel Professional. New York: Glencoe, 1991.

ציטוט MLA

Foster, Dennis L. Sales and Marketing for the Travel Professional. New York: Glencoe, 1991.