000 00337nam a2200145Ia 4500
020 _a969477117X
082 _b254
_a500.030
100 _a"NA"
245 0 _aUrdu Science Encyclopedia
260 _b,Urdu science board
_aLahore
_c2007
300 _a208
944 _cBK
999 _c523187
_d523187