00411nam a22001577a 4500 939 939 200101b ||||| |||| 00| 0 eng d 621.3133 M4678 506 Maycock, W. Parren. Alternating current work 2nd London Pitman 1946 xxiii,428p. 5.15 Alternating Electric Currents BK 0 0 ddc 0 621_313300000000000_M4678 0 3208 CL CL 1953-10-22 A. H. Wheeler 621.3133 M4678 00559 2020-01-01 BK 0 0 ddc 0 621_313300000000000_M4678 0 3209 CL CL 1953-10-22 A. H. Wheeler 621.3133 M4678 00560 2020-01-01 BK