000 00340nam a2200133Ia 4500
008 221122s9999 xx 000 0 und d
082 _a556(0843): 398.2 N70
100 _aUNESCO
245 0 _aInternational legend for hydrogeological maps
260 _bUNESCO
_aLondon
_c1970
300 _a101 p.
650 _aHydrogeological maps
942 _cBK
999 _c71
_d71