000 00304nam a2200121Ia 4500
008 211214s9999 xx 000 0 und d
040 _cJayakar Knowledge Resource Centre
100 _aColby, Charles C
245 0 _aEconomic geography
260 _bBoston
_cGinn and co
300 _a1947 p.
942 _c1
999 _c23328
_d23328