Choudhury, S.K. Hajra Elements of workshop technology vol: II machine tools S.K. Hajra Choudhury, A.K. Hajra Choudhury & Nirjhar Roy - Mumbai Media Promoters & Publishers Pvt. Ltd. 2010 - xvi, 712p.: ill.; 22cm. ISBN: 8185099154 LC Class. No.: TS210 / C46 2010