Gruppo di ricerca interuniversitario sullo sviluppo sostenibile., Conference "Sustainable tourism as a factor of local development", Castellani, V., & Sala, S. (2009). Sustainable tourism as a factor of local development. Trento: Tangram.
Παραπομπή Chicago StyleGruppo di ricerca interuniversitario sullo sviluppo sostenibile., Conference "Sustainable tourism as a factor of local development", Valentina Castellani, and Serenella Sala. Sustainable Tourism As a Factor of Local Development. Trento: Tangram, 2009.
Παραπομπή MLAGruppo di ricerca interuniversitario sullo sviluppo sostenibile., Conference "Sustainable tourism as a factor of local development", Valentina Castellani, and Serenella Sala. Sustainable Tourism As a Factor of Local Development. Trento: Tangram, 2009.