@book{32039,
	author = {Layna Ranz, Francisco,},
	title = {La eficacia del fracaso :},
	publisher = {Ediciones Polifemo,},
	year = {2005.},
	address = {Madrid :},
	url = {https://login.zproxy.cun.edu.co/login?url=https://www.digitaliapublishing.com/a/18907/}
}