00387nam a2200157Ia 4500 20260205055341.0 260111s9999||||xx |||||||||||||| ||und|| 621 G237E Gaur, R.K. Engineering physics New Delhi Dhanpat Rai Pub. 2007 64.20p. Engineering physics Gupta, S.L./ BK 152338 152338 0 0 0 0 TSCSL TSCSL 2026-02-05 0 621 G237E 182189 2026-02-05 05:53:41 2026-02-05 BK