Vaca-Acosta, R. 2012. Corporate Social Responsibility in Spanish hotel chains: determinants of its level of development and consequences: Supervisors: Dr. Alfonso Vargas-Sánchez. Institution awarding the Ph. D. Degree: University of Huelva, Spain. Date of defence: 22/03/2012. European Journal of Tourism Research. 5, 2 (Oct. 2012), 191–195. DOI:https://doi.org/10.54055/ejtr.v5i2.111.