000 00386nam a2200133Ia 4500
008 180712s9999 xx 000 0 und d
020 _a9231014978
082 _a910.11
_bUNE
100 _aUnited Nations Educational Scientific and Cultural Organiz
245 _aWORLD water balance and water resources of the earth
260 _aatParis
_bUnesco
_c1978
300 _a663 p.
942 _cS
999 _c48767
_d48767