APA (7th ed.) Citation

World Association of Travel Agencies. (1980). Master-key: World-wide travel agency and hotel tariffs. WATA.

Chicago Style (17th ed.) Citation

World Association of Travel Agencies. Master-key: World-wide Travel Agency and Hotel Tariffs. Geneva: WATA, 1980.

MLA (9th ed.) Citation

World Association of Travel Agencies. Master-key: World-wide Travel Agency and Hotel Tariffs. WATA, 1980.

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