(1990). Discover America package tour handbook: A basic guide for the development and marketing of pre-planned domestic packaged travel. Travel Industry Association of America.
Chicago-Zitierstil (17. Ausg.)Discover America Package Tour Handbook: A Basic Guide for the Development and Marketing of Pre-planned Domestic Packaged Travel. Washington, D.C: Travel Industry Association of America, 1990.
MLA-Zitierstil (9. Ausg.)Discover America Package Tour Handbook: A Basic Guide for the Development and Marketing of Pre-planned Domestic Packaged Travel. Travel Industry Association of America, 1990.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.