@book{65429,
	author = {Sapag Chain, Nassir and Sapag Puelma, José  Manuel},
	title = {Preparación y evaluación de proyectos /},
	publisher = {McGraw-Hill},
	year = {2014},
	series = {McGraw-Hill Education},
	address = {México, D.F.},
	edition = {Sexta edición},
	url = {https://login.zproxy.cun.edu.co/login?url=https://www.ebooks7-24.com:443/?il=752}
}