000 00276nam a2200133Ia 4500
100 _aReddy, G. Ram
365 _b200
942 _cBK
654 _a
245 _aOpen universities
260 _aNew Delhi
_bSterling Publishers
_c1988
082 _a378
300 _bHb
_a10270
999 _c403738
_d403738
041 _aeng