000 00274nam a2200121Ia 4500
008 160710s1953 xx 000 0 und d
082 _a530 PUR
100 _aA. N. PURI
245 _aPRACTICAL PHYSICS
260 _bS. CHAND & CO.
_c1953
300 _a341
942 _2ddc
_cSF
999 _c77915
_d77915