Boers, Hans , and Martin Bosch (1994). The Earth as a Holiday Resort: An Introduction to Tourism and the Environment. Utrecht: Netherlands Institute of Tourism and Transport Studies.
2.
Butler, R.W. (1980). "The Concept of a Tourist Area Cycle of Evolution."Canadian Geographer, 24 (1): 5-16.
3.
Craik, Jennifer (1995). "Are There Cultural Limits to Tourism?"Joumal of Sustainable Tourism, 3 (2): 87-98.
4.
Haywood, K. Michael (1990). "Revising and Implementing the Marketing Concept as It Applies to Tourism."Tourism Management, 11 (September): 195-205.
5.
Hunter, Colin J. (1995). "On the Need to Reconceptualize Sustainable Tourism Development."Journal of Sustainable Tourism, 3 (3): 155-165.
6.
Kotler, Philip , John Bowen, and James Makens (1996). Marketing for Hospitality and Tourism. Upper Saddle River, NJ: Prentice-Hall International.
7.
Morrison, Alastair M. (1996). Hospitality and Travel Marketing. Albany, NY: Delmar.
8.
Singh, Tej Vir , Valene L. Smith, Mary Fish, and Linda Richter (1992). Tourism Environment: Nature, Culture, Economy. New Delhi: Inter-India Publications.
9.
Smith, Valene L. (1989). Hosts and Guests: The Anthropology of Tourism. 2d ed.Philadelphia: University of Pennsylvania Press. Originally published in 1977.
10.
Walle, Alf H. (1995). "Business Ethics and Tourism: From a Micro to a Macro Perspective."Tourism Management, 16(4):263-268.
11.
Wehlan, Tensie (1991). Nature Tourism: Managing for the EnvironmentWashington, DC: Island Press.