000 00452nam a2200181Ia 4500
008 230524s9999 xx 000 0 und d
040 _cUDSM
050 _aPAM GB665.U5 No.7
245 0 _aScientific framework of world water balance
260 _aParis
260 _bUNESCO
260 _c1971
300 _a27p.
300 _c27cm.
650 _aWater balance (hydrology)
942 _2Library of Congress Classification
942 _cPamphlet
999 _c113009
_d113009