000 00250nam a2200121Ia 4500
100 _aRao, Kalluri Subba
020 _a81-237-0999-4
942 _cBK
245 _aAging
260 _aNBT, New Delhi
_c1997
082 _a612.67 Rao
300 _aviii,69p
999 _c37071
_d37071