00471nam a22001577a 4500 1942 1942 200207b ||||| |||| 00| 0 eng d 621 W1772 763 Walker, J. D. Mechanical engineering science for National certificate, Vol - II 2nd London English universities press 1956 xi,296p. The Technical college series Mechanical Engineering BK 0 0 ddc 0 621_000000000000000_W1772 0 5030 CL CL 1953-02-03 A. H. Wheeler 621 W1772 01649 2020-02-07 BK 0 0 ddc 0 621_000000000000000_W1772 0 5031 CL CL 1953-02-03 A. H. Wheeler 621 W1772 01650 2020-02-07 BK 0 1 ddc 0 621_000000000000000_W1772 0 12287 CL CL 1953-03-13 A. H. Wheeler 621 W1772 01648 2020-07-24 BK