@book{66995,
	author = {Guerro Pino, Germán,},
	title = {Einstein :},
	publisher = {Programa Editorial Universidad del Valle,},
	year = {2017.},
	series = {Colección Artes y Humanidades},
	address = {Cali, Colombia :},
	note = {Incluye índice.},
	url = {https://elibro.net/ereader/politecnicointernacional/129005}
}