000 00286nam a2200121Ia 4500
008 220201s1991 xx 000 0 eng d
082 _bSHA
100 _aSharma, R C
245 0 _aCurrent science
260 _aNew Delhi
_bIndra Acadamy of Service
_c1991
300 _a388
942 _2ddc
999 _c28695
_d28695