Calderón Delgado, Marco Antonio2021-05-182021-05-182008http://hdl.handle.net/11056/19570spaAcceso abiertoAttribution-NonCommercial-NoDerivatives 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/CONSERVACION DE DOCUMENTOSPRESERVATION OF DOCUMENTSRESTAURACION DE DOCUMENTOSDOCUMENT RESTORATIONCOLECCIÓNCOLLECTIONBIBLIOTECASLIBRARIEShttp://purl.org/coar/resource_type/c_6501