@book{168248,
	author = {Weimer, Richard C. and  Ramírez Galarza, Ana Irene, tr.},
	title = {Estadística  /},
	publisher = {CECSA,},
	year = {2004},
	address = {México  :},
	edition = {7a reimpresión},
	note = {Titulo original: Statistics}
}