Gearing, C. E., Swart, W. W., & Var, T. (1976). Planning for tourism development: Quantitative approaches. New York: Praeger.
Παραπομπή Chicago StyleGearing, Charles E., William W. Swart, and Turgut Var. Planning for Tourism Development: Quantitative Approaches. New York: Praeger, 1976.
Παραπομπή MLAGearing, Charles E., William W. Swart, and Turgut Var. Planning for Tourism Development: Quantitative Approaches. New York: Praeger, 1976.
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