APA (7th ed.) Citation

World Tourism Organization. (2001). Tourism signs symbols: A status report handbook. World Tourism Organization.

Chicago Style (17th ed.) Citation

World Tourism Organization. Tourism Signs Symbols: A Status Report Handbook. [Madrid]: World Tourism Organization, 2001.

MLA (9th ed.) Citation

World Tourism Organization. Tourism Signs Symbols: A Status Report Handbook. World Tourism Organization, 2001.

Warning: These citations may not always be 100% accurate.