1
Water for people - water for life : a joint report by the twenty-three UN agencies concerned with freshwater /
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2
Isotopes in water resources management vol 0002 : Symposium on isotopes in water resources management: proceedings vol 0002 : Wien, 20.03.95-24.03.95
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3
Isotopes in water resources management : Symposium on isotopes in water resources management: proceedings vol 0001 : Wien, 20.03.95-24.03.95
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4
International symposium water resources planning in a changing world: proceedings : Karlsruhe, 28.06.94-30.06.94 : International hydrological programme of UNESCO.
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5
Isotope techniques in water resources development 1991 : International symposium on isotope techniques in water resources development: proceedings : Wien, 11.03.91-15.03.91
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