@book{78284,
	author = {Wild, Rebeca,},
	title = {Etapas del desarrollo /},
	publisher = {Herder,},
	year = {2011.},
	address = {Barcelona :},
	url = {https://login.zproxy.cun.edu.co/login?url=https://www.digitaliapublishing.com/a/61097/}
}