Gutiérrez Cordero, Rosario2015-11-242015-11-241995ISBN 84-600-4773-3http://hdl.handle.net/11441/30993application/pdfspaAttribution-NonCommercial-NoDerivatives 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccess