000 00329nam a2200145Ia 4500
020 _a0000000000000
082 _b671
_a530
100 _a"Sarwar, Gul Shehzad"
245 0 _aPractical physics
260 _b,Rahber Pub
_c1993
300 _a230
944 _cTR
999 _c528857
_d528857