000 00291nam a2200133Ia 4500
100 _aKumar, P S R
365 _b250
942 _cBK
654 _a
245 _aPractical guide to DDC 20
260 _aNagpur
_bDattsons Publishers
_c1990
082 _a025.43
300 _bHb
_c22cm
_a(8),248
999 _c378282
_d378282
041 _aeng