@book{81691,
	author = {Wild, Rebeca.},
	title = {Etapas del desarrollo /},
	publisher = {Herder Editorial,},
	year = {2011.},
	address = {Barcelona :},
	note = {Incluye índice.},
	url = {https://elibro.net/ereader/politecnicointernacional/45684}
}