00402nam a22001457a 4500 1476 1476 200124b ||||| |||| 00| 0 eng d 621.313 D857 1099 Duffin, D. J. Generators and motors and their applications New York McGraw-Hill Book Co. 1947 xi,210p. 22.08 Electric Machinery BK 0 0 ddc 0 621_313000000000000_D857 0 4208 CL CL 1953-01-19 A. H. Wheeler 621.313 D857 01258 2020-01-24 BK 0 0 ddc 0 621_313000000000000_D857 0 4209 CL CL 1953-01-19 A. H. Wheeler 621.313 D857 01259 2020-01-24 BK