Vaca-Acosta R. 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. EJTR [Internet]. 2012 Oct. 1 [cited 2025 Apr. 25];5(2):191-5. Available from: https://ejtr.vumk.eu/index.php/about/article/view/111