Lua APA (7ú heag.)

Congress of the Association Internationale d' Experts Scietifiques du Tourisme Wales. (1981). Leisure, recreation, tourism: Proceedings of the 31st congress of the Association Internationale d' Experts Scientifiques du Tourisme, Wales, 13-19 September 1981. AIEST.

Lua i Stíl Chicago (17ú heag.)

Congress of the Association Internationale d' Experts Scietifiques du Tourisme Wales. Leisure, Recreation, Tourism: Proceedings of the 31st Congress of the Association Internationale D' Experts Scientifiques Du Tourisme, Wales, 13-19 September 1981. Berne, Switzerland: AIEST, 1981.

Lua MLA (9ú heag.)

Congress of the Association Internationale d' Experts Scietifiques du Tourisme Wales. Leisure, Recreation, Tourism: Proceedings of the 31st Congress of the Association Internationale D' Experts Scientifiques Du Tourisme, Wales, 13-19 September 1981. AIEST, 1981.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.