@book{641,
	author = {Brown, Theodore L. and LeMay, Eugene H.},
	title = {Química : la ciencia central},
	publisher = {Pearson Educación ,},
	year = {2009.},
	address = {México, D.F. :},
	edition = {11a ed.},
	note = {Título original : Chemistry the central science.}
}