@book{68614,
	author = {Amar Amar, José Juan. and Martínez González, Marina. },
	title = {El ambiente imperativo :},
	publisher = {Editorial Universidad del Norte :},
	year = {2011. },
	address = {Barranquilla, Colombia :},
	url = {https://login.zproxy.cun.edu.co/login?url=https://www.digitaliapublishing.com/a/13640/}
}