Roy, K P .
Elements of mechanical engineering / Textual Documents K P Roy. - 1 / . - Mumbai : Asia Publishing House , 1965. - 637 ; .
621.8 / ROY/EL
Elements of mechanical engineering / Textual Documents K P Roy. - 1 / . - Mumbai : Asia Publishing House , 1965. - 637 ; .
621.8 / ROY/EL