@book{32029,
	author = {Barbero Encinas, Juan Carlos.},
	title = {Fondo y figura :},
	publisher = {Ediciones Polifemo,},
	year = {2008.},
	address = {Madrid :},
	url = {https://login.zproxy.cun.edu.co/login?url=https://www.digitaliapublishing.com/a/18892/}
}