Gas shielded arc welding practices. - 2nd ed. - Watford : E.I.T.B., 1988. - 58 p. : ill. - Engineering training guide ; 15 Training in engineering skills . ISBN: 0850838010 (pbk.) LCCN: 90033042 Subjects--Topical Terms: Electric welding--Study and teaching. Subjects--Index Terms: Arc welding