South-Western Publishing, Burke, J. F., & Resnick, B. P. (1991). Marketing and selling the travel product. South-Western Publishing.
Παραπομπή σε μορφή Chicago (17η εκδ.)South-Western Publishing, James F. Burke, και Barry P. Resnick. Marketing and Selling the Travel Product. Cincinnati: South-Western Publishing, 1991.
Παραπομπή σε μορφή MLA (8th εκδ.)South-Western Publishing, et al. Marketing and Selling the Travel Product. South-Western Publishing, 1991.
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