000 00306nam a2200121Ia 4500
080 _a17.05.05 W927
245 _aWorld water balance and water resources of the earth
260 _bUNESCO
_aParisFR
_c1978
300 _a663 p. : maps
583 _c11/7/05
_kJOYD
650 _aWATER BALANCE
942 _cM
_mW927
999 _c27791
_d27791