APA (7th ed.) Citation

Youell, R. (1996). Travel and tourism optional units: Advanced GNVQ. Longman.

Chicago Style (17th ed.) Citation

Youell, Ray. Travel and Tourism Optional Units: Advanced GNVQ. Essex, Eng: Longman, 1996.

MLA (9th ed.) Citation

Youell, Ray. Travel and Tourism Optional Units: Advanced GNVQ. Longman, 1996.