@book{213650,
	author = {Masterton, William L. and Hurley, Cecile N.},
	title = {Química : principios y reacciones / William L. Masterton ; Cecile N. Hurley ; Marta Valledor Llopis ... [et als.].},
	publisher = {Thomson Learning; Paraninfo},
	year = {2003},
	address = {Madrid},
	edition = {4a ed.}
}