TY - BOOK AU - SIGALA, Marianna ed. AU - CHRISTOU, Evangelos ed . AU - GRETZEL, Ulrike ed. TI - Social Media in Travel, Tourism and Hospitality: theory, practice and cases SN - 9781409420910 U1 - 910.688 PY - 2012/// CY - Surrey PB - Ashgate Publishing KW - Hospitality industry -- Social aspects KW - Social media KW - Tourism -- Social aspects ER -