00661nam a22001937a 4500 BD-DhUL 20150119110352.0 150119s1947 -uka|||| |||| 001 0 eng d BD-DhUL BD-DhUL 621.31 DOT Dover, A. T. Theory and practice of alternative currents : general principles, circuits, instruments, measurements, transformers, machines, symmetrical components/ A. T. Dover. 3rd ed. London : Sir Isaac Pitman & Sons ; 1947. xvi, 591p. : ill. ; 22 cm. Includes Index. Electric currents, Alternating. ddc BK 33110 33110 0 0 ddc 0 621_310000000000000_DOT 0 NFIC 62023 DUSL DUSL GEN 1954-10-14 Gift 621.31 DOT 85934 2015-01-19 2015-01-19 BK