@book{18336,
	author = {Cuellar Pulido, Andres Milena and Vargas Alfonso, Ingrith Yulied},
	title = {Eco-Tiend / },
	publisher = {Corporación Unificada Nacional de Educación Superior,},
	year = {2018.},
	address = {Bogotá (Colombia) :},
	edition = {                   },
	url = {https://drive.google.com/open?id=1YW8CuyIXyFrkpljQ9-6GIsy8g0ogGsLC}
}