Hajra Choudhury, S. K. Elements of workshop technology : Vol 2 machine tools / S.K. Hajra Choudhury & Nirjhar Roy - 15th ed. - Mumbai : MPP, 2016. - xvi, 712 p. ; 22 cm ISBN: 8185099154 Rs. 290 Subjects--Topical Terms: Machine-shop practice. Dewey Class. No.: 621.75 / HAJ