@book{24178,
	author = {Marín, Alejandro  and Ramírez, Oscar Daniel},
	title = {Una simple hoja /},
	publisher = {Corporación Unificada Nacional de Educación Superior,},
	year = {2017.},
	address = {Bogotá (Colombia) :},
	url = {https://drive.google.com/file/d/1Ea6Q1nIjzMpdzpsi0UsQ1HN894KMyWgF/view?usp=share_link}
}