Travel Research Association. (1978). Using travel research for planning and profits: The Travel Research Association ninth annual conference proceedings. Bureau of Economic and Business Research, College of Business, University of Utah.
Citazione stile Chigago Style (17a edizione)Travel Research Association. Using Travel Research for Planning and Profits: The Travel Research Association Ninth Annual Conference Proceedings. Salt Lake City, Utah: Bureau of Economic and Business Research, College of Business, University of Utah, 1978.
Citatione MLA (9a ed.)Travel Research Association. Using Travel Research for Planning and Profits: The Travel Research Association Ninth Annual Conference Proceedings. Bureau of Economic and Business Research, College of Business, University of Utah, 1978.