@book{130238,
	author = {Bracho, Javier.},
	title = {¿En qué espacio vivimos? /},
	publisher = {FCE :},
	year = {2003.},
	address = {México D. F. :},
	edition = {3a ed.},
	url = {https://elibro.net/ereader/politecnicointernacional/71971}
}