Seminar on Travel and Tourism Stresa, Italy, & European Society for Opinion and Marketing Research. (1977). Seminar on "Travel and Tourism", Stresa, 19th-22nd October, 1977. European Society for Opinion and Marketing Research Association.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Seminar on Travel and Tourism Stresa, Italy, và European Society for Opinion and Marketing Research. Seminar on "Travel and Tourism", Stresa, 19th-22nd October, 1977. Amsterdam: European Society for Opinion and Marketing Research Association, 1977.
Trích dẫn kiểu MLA (xuất bản lần thứ 9)Seminar on Travel and Tourism Stresa, Italy, và European Society for Opinion and Marketing Research. Seminar on "Travel and Tourism", Stresa, 19th-22nd October, 1977. European Society for Opinion and Marketing Research Association, 1977.