1.		The consequences of forty years of tourism growth / Carlton S. Van Doren, Sam A. Lollar Autor: Doren, Carlton S. Van Coautor: ; Lollar, Sam A.
2.		U.S. tourist destinations : a history of desirability / Sam A. Lollar, Carlton S. Van Doren Autor: Lollar, Sam A. Coautor: ; Doren, Carlton S.Van