@book{49864,
	author = {Murray,Robert K.},
	title = {Harper :},
	publisher = {Manual Moderno,},
	year = {2007},
	address = {México:},
	edition = {17},
	note = {Título original: Harper's illustrated biochemistry
},
	url = {http://biblioteca.unac.edu.co/portadas/18342.jpg}
}