@book{9199,
	author = {Lutz, Mark},
	title = {Learning Python /},
	publisher = {O'Reilly, },
	year = {c2013},
	address = {Beijing :},
	edition = {5 ed.},
	note = {A la cabeza de la portada: Powerful object-oriented programming. Updated for 3.3 and 2.7},
	url = {https://www.cicy.mx/sitios/sib/doctoelectronico/9942(2).pdf}
}