UDC 621.1 Heat engines in general steam power steam engines UDC 621.22 water power hydraulic energy BS 1000 (621.1/22) 1979

B S I

UDC 621.1 Heat engines in general
steam power steam engines UDC 621.22 water power hydraulic energy BS 1000 (621.1/22) 1979 B S I - - London B S I 1979





025.43 UDC/BSI/16