@book{100820,
	author = {Montoya Vallecilla, Jorge Olmedo,},
	title = {MS Project aplicado a obras de construcción /},
	publisher = {Ediciones Unibagué,},
	year = {2018. },
	address = {Ibagué :},
	url = {https://login.zproxy.cun.edu.co/login?url=https://www.digitaliapublishing.com/a/130056/}
}