Vellas,François., & Bécherel, L. (1999). The international marketing of travel and tourism: A strategic approach. Basingstoke: Macmillan.
استشهاد بنمط شيكاغوVellas,François., and Lionel Bécherel. The International Marketing of Travel and Tourism: A Strategic Approach. Basingstoke: Macmillan, 1999.
MLA استشهادVellas,François., and Lionel Bécherel. The International Marketing of Travel and Tourism: A Strategic Approach. Basingstoke: Macmillan, 1999.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.