@book{36440,
	author = {Sapag Chain, Reinaldo,},
	title = {Preparación y evaluación de proyectos :},
	publisher = {Edición Digital,},
	year = {[2013]},
	address = {[Santiago, Chile] :},
	url = {https://login.zproxy.cun.edu.co/login?url=https://www.digitaliapublishing.com/a/30436/}
}