00385nam a2200145 4500 691 691 191119b ||||| |||| 00| 0 eng d 621.3 C8511 203 Cotton, H. Electrical Technology 6th ed. London Sir Isaac Pitman & Sons 1949 xiv, 600 p. Electrical Engineering ddc BK 0 0 ddc 0 621_300000000000000_C8511 0 2777 CL CL 1952-10-10 621.3 C8511 00109 2019-11-19 1 BK