000 00309nam a2200145Ia 4500
020 _a0000000000
082 _bT-1383
_a510
100 _a"PTB"
245 0 _aMath PTB 10
260 _bPTB
_aPakistan
_c2005
300 _a302
944 _cTB
999 _c221361
_d221361