@book{543,
	author = {Brown, T. A.},
	title = {Gene cloning :an Introduction},
	publisher = {Nelson Thornes,},
	year = {1995.},
	address = {[S.l.] :},
	edition = {3 Sub ed.},
	url = {http://www.amazon.com/exec/obidos/ASIN/0412622408/chopaconline-20}
}