Meeting of the International Geographical Union's Working Group on the Geography of Tourism and Recreation Trent University & International Geographical Union Working Group. (1975). Tourism as a factor in national and regional development [1 to 8] 1974: Proceedings of a meeting of the international Geographical Union's Working Group on the Geography of Tourism and Recreation, September, 1974. Dept. of Geography, Trent University.
Chicago-viite (17. p.)Meeting of the International Geographical Union's Working Group on the Geography of Tourism and Recreation Trent University ja International Geographical Union Working Group. Tourism as a Factor in National and Regional Development [1 to 8] 1974: Proceedings of a Meeting of the International Geographical Union's Working Group on the Geography of Tourism and Recreation, September, 1974. Peterborough, Ont: Dept. of Geography, Trent University, 1975.
MLA-viite (9. p.)Meeting of the International Geographical Union's Working Group on the Geography of Tourism and Recreation Trent University ja International Geographical Union Working Group. Tourism as a Factor in National and Regional Development [1 to 8] 1974: Proceedings of a Meeting of the International Geographical Union's Working Group on the Geography of Tourism and Recreation, September, 1974. Dept. of Geography, Trent University, 1975.