000 00317nam a2200145Ia 4500
008 190201s9999 xx 000 0 und d
082 _a530
082 _bS61A
100 _a"Singh, S.P."
245 0 _aAdvanced Practical Physi
260 _aIndia
260 _bPragati Prakashan
260 _c1985
300 _a391
999 _c20654
_d20654