@book{3208,
	author = {Sinisterra Valencia, Gonzalo. and Polanco Izquierdo, Luis Enrique.},
	title = {Contabilidad :},
	publisher = {McGraw-Hill,},
	year = {©2011.},
	address = {Bogotá :},
	edition = {6a. ed.},
	note = {Incluye índice.},
	url = {http://fullseguridad.net/wp-content/uploads/2016/10/Contabilidad-6ta-Edici%C3%B3n-Gonzalo-Sinisterra.pdf}
}