@book{1983,
	author = {Parkins, R.N.},
	title = {Mechanical Treatment of Metals /},
	publisher = {Allen & Unwin,},
	year = {1968.},
	address = {[S.l.] :},
	url = {http://www.amazon.com/exec/obidos/ASIN/0046710035/chopaconline-20}
}