Litter impacts on scenery and tourism on the Colombian north Caribbean coast / Allan Thomas Williams [et al.]
An experience-based typology for natural event tourists / Martinette Kruger and Melville Saayman
Towards new forms of public-private sector partnership : the changing role, structure and activities of National Tourism Administrations / World Tourism Organization
Thesauro de términos turísticos y áreas afines / Mario Cifuentos Mendez