000 00344nam a2200145Ia 4500
020 _a0000000000
082 _bT-442
_a530
100 _a"NIL"
245 0 _aPHYSICS CERTIFICATE SCIENCE SERIES
260 _b,ELECTRONIC SYSTEM
_aLAHORE
_c1982
300 _a384
944 _cTR
999 _c796509
_d796509