APA (7th ed.) Citation

World Tourism Organization, European Travel Commission, MacNulty, P., & Cleverdon, R. (2011). Handbook on tourism product development. World Tourism Organization ; European Travel Commission.

Chicago Style (17th ed.) Citation

World Tourism Organization, European Travel Commission, Peter MacNulty, and Robert Cleverdon. Handbook on Tourism Product Development. Madrid, Spain : Brussels, Belgium: World Tourism Organization ; European Travel Commission, 2011.

MLA (9th ed.) Citation

World Tourism Organization, et al. Handbook on Tourism Product Development. World Tourism Organization ; European Travel Commission, 2011.