@book{3001,
	author = {Mrachek, Len.},
	title = {Basic mathematics for welding /},
	publisher = {Breton Publishers,},
	year = {1982.},
	address = {[S.l.] :},
	url = {http://www.amazon.com/exec/obidos/ASIN/0534011101/chopaconline-20}
}