@book{18255,
	author = {Garcia Ruiz, Rafael and Echavarria Salamanca, Nestor and   },
	title = {Cun App / },
	publisher = {Corporación Unificada Nacional de Educación Superior,},
	year = {2018.},
	address = {Bogotá (Colombia) :},
	url = {https://drive.google.com/file/d/1XbO0TNgMsTIePDERKM29hcrozMm-u_Ow/view?usp=sharing}
}