Frechtling, D. C. (1996). Practical tourism forecasting. Butterworth-Heinemann.
Cita Chicago Style (17a ed.)Frechtling, Douglas C. Practical Tourism Forecasting. Oxford: Butterworth-Heinemann, 1996.
Cita MLA (8a ed.)Frechtling, Douglas C. Practical Tourism Forecasting. Butterworth-Heinemann, 1996.
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