FRECHTLING DOUGLAS C. (2001). FORECASTING TOURISM DEMAND: METHODS AND STRATEGIES. BUTTERWORTH-HEINEMANN.
Chicagoスタイル(17版)引用形式FRECHTLING DOUGLAS C. FORECASTING TOURISM DEMAND: METHODS AND STRATEGIES. NEW DELHI: BUTTERWORTH-HEINEMANN, 2001.
MLA(9版)引用形式FRECHTLING DOUGLAS C. FORECASTING TOURISM DEMAND: METHODS AND STRATEGIES. BUTTERWORTH-HEINEMANN, 2001.
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