000 00294nam a2200121Ia 4500
008 220201s1991 xx 000 0 eng d
082 _a0
_bDWI
100 _aDwivedi,D.N
245 0 _aPrinciple of Economics .
260 _bVikas Publishing House
_aNew Delhi
_c1991
300 _a702
942 _2ddc
999 _c6626
_d6626