@book{666,
	author = {Chou, Ya-Lun and Agut Armer, Vicente},
	title = {Análisis estadístico},
	publisher = {Interamericana},
	year = {1977},
	address = {México :},
	edition = {2a. ed.},
	url = {https://www.biblioeco.unsa.edu.ar/pmb/images/libros/L127493.jpg}
}