Parmar, R. S. Welding processes and technology / by R. S. Parmar. - 3rd ed. - Delhi : Khanna Publishers, 2015. - 808 p. : illu. ; 23 cm. Includes bibliographical references and index. ISBN: 8174091262 (pbk.) Subjects--Topical Terms: Welding. Dewey Class. No.: 671.52 / PAR/W