00380nam a22001577a 4500 1409 1409 200123b ||||| |||| 00| 0 eng d 621.1 K416 121 Kersey, A. T. J. Ripper's heat engines 3rd London Longmans 1950 ix,363p. 7.02 Heat Engines BK 0 0 ddc 0 621_100000000000000_K416 0 4065 CL CL 1953-01-19 Longmans 621.1 K416 01200 2020-01-23 BK 0 1 ddc 0 621_100000000000000_K416 0 12140 CL CL 1953-01-19 Longmans 621.1 K416 01199 2020-07-20 BK