Aguilar García, María LeonorLeón Prieto, Luz2014-06-272014-06-271996http://dspace.ucuenca.edu.ec/handle/123456789/15004application/pdfspaopenAccesshttp://creativecommons.org/licenses/by-nc-sa/3.0/ec/Contaminacion UrbanaCanton BiblianHistoria Y GeografiabachelorThesis