@book{77477,
	author = {Echavarría Olózaga, Hernán,},
	title = {Economía básica /},
	publisher = {CESA, Colegio de Estudios Superiores de Administración,},
	year = {[2013]},
	address = {Bogotá, D.C. :},
	url = {https://login.zproxy.cun.edu.co/login?url=https://www.digitaliapublishing.com/a/59833/}
}