Dervaes, C. (1996). The Travel training workbook: General review and sales techniques. Tampa: Solitaire.
Chicago Stili AlıntıDervaes, Claudine. The Travel Training Workbook: General Review and Sales Techniques. Tampa: Solitaire, 1996.
MLA AlıntıDervaes, Claudine. The Travel Training Workbook: General Review and Sales Techniques. Tampa: Solitaire, 1996.
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