@book{25909,
	author = {Ortega, Oswaldo.},
	title = {Dinámica de grupos :},
	publisher = {Ecoe Ediciones,},
	year = {2016.},
	address = {Bogotá :},
	note = {Incluye índice.},
	url = {https://elibro.net/ereader/politecnicointernacional/114327}
}