Foster, D. L. (1991). Sales and marketing for the travel professional. New York: Glencoe.
シカゴスタイル引用形Foster, Dennis L. Sales and Marketing for the Travel Professional. New York: Glencoe, 1991.
MLA引用形式Foster, Dennis L. Sales and Marketing for the Travel Professional. New York: Glencoe, 1991.
警告: この引用は必ずしも正確ではありません.