@book{1402,
	author = {Murray, Robert K. and etc.},
	title = {Harpers biochemistry /},
	publisher = {Appleton and Lange,},
	year = {1987.},
	address = {[S.l.] :},
	edition = {21st ed.},
	note = {International Edition.},
	url = {http://www.amazon.com/exec/obidos/ASIN/0838536492/chopaconline-20}
}