Congress of the Association Internationale d' Experts Scientifiques du Tourisme Palma de Mallorca. (1980). Limits to tourism development: Proceedings of the 30th congress of the Association Internationale d' Experts Scientifiques du Tourisme, Palma de Mallorca, 14-20 September 1980. AIEST.
Cita Chicago (17th ed.)Congress of the Association Internationale d' Experts Scientifiques du Tourisme Palma de Mallorca. Limits to Tourism Development: Proceedings of the 30th Congress of the Association Internationale D' Experts Scientifiques Du Tourisme, Palma De Mallorca, 14-20 September 1980. Berne, Switzerland: AIEST, 1980.
Cita MLA (9th ed.)Congress of the Association Internationale d' Experts Scientifiques du Tourisme Palma de Mallorca. Limits to Tourism Development: Proceedings of the 30th Congress of the Association Internationale D' Experts Scientifiques Du Tourisme, Palma De Mallorca, 14-20 September 1980. AIEST, 1980.