00448 a2200145 4500 8183560679 538 1654 1654 Verma, R. K. Text Book of Magnetism R. K. Verma New Delhi Discovery Publishing 2006. 283 SNS BK 538 VER 30263 30263 0 0 0 0 SNS SNS 2016-05-26 1 538 VER SNS0000814 2023-09-07 2019-01-18 2016-05-26 BK