Choudhury, S K Hajra Elements of workshop technology Machine tools - 7th rev.ed. - Mumbai Media promotors 1997 - viii, 653p. ISBN: 8185099146 Subjects--Topical Terms: 621.7/.9--Workshop technology Dewey Class. No.: 621.7/.9 / CHO Universal Decimal Class. No.: 621.7/.9 CHO