@book{53293,
	author = {Jung, Stefanie, and Krebs, Peter,},
	title = {Claves para la negociación de contratos :},
	publisher = {Bosch,},
	year = {2021.},
	address = {Las Rozas (Madrid) :},
	url = {https://login.zproxy.cun.edu.co/login?url=https://elibro.net/ereader/bibliocun/212601}
}