000 00331nam a2200145Ia 4500
008 220926s9999 xx 000 0 und d
100 _aR.N.Dubey & S.R.Singh
245 0 _aEconomic & Commercial Geography
250 _a-
260 _a-
260 _b-
260 _c0
650 _aEconomic & Commercial Geography
942 _cBK
999 _c2464
_d2464