@book{21371,
	author = {Polo Salazar, Alvaro and Suaza Hendez, Edinson},
	title = {Optimización del inventario sobrante /},
	publisher = {Corporación Unificada Nacional de Educación Superior,},
	year = {2010.},
	address = {Neiva (Colombia) :},
	edition = {                   }
}