000 00345nam a2200133Ia 4500
008 240624s9999 xx 000 0 und d
041 _aeng
082 _a050 OBR
100 _aO BRIEN TERRY
245 _aTWENTY 20 GK FOR COMPETITIVE EXAMINATION
260 _c2012
_aNew Delhi
_bTata McGraw- Hill
300 _axiv, : 23 : cm.
365 _cRS
_b29
999 _c19680
_d19680