000 00279nam a2200121Ia 4500
008 180721s9999 xx 000 0 und d
100 _aR.S.Aggarwal
245 0 _aReasoning
260 _b"S.Chand & company Ltd, New Delhi"
260 _c1997
365 _b200.00
942 _cBK
999 _c153569
_d153569