Citazione Stile APA (7a Edizione)

FRECHTLING DOUGLAS C. (2001). FORECASTING TOURISM DEMAND: METHODS AND STRATEGIES. BUTTERWORTH-HEINEMANN.

Citazione stile Chigago Style (17a edizione)

FRECHTLING DOUGLAS C. FORECASTING TOURISM DEMAND: METHODS AND STRATEGIES. NEW DELHI: BUTTERWORTH-HEINEMANN, 2001.

Citatione MLA (9a ed.)

FRECHTLING DOUGLAS C. FORECASTING TOURISM DEMAND: METHODS AND STRATEGIES. BUTTERWORTH-HEINEMANN, 2001.