تفصيلات التسجيلة (السجل)
رمز / رقم الاستدعاء***
العنوانWHO/UNEP report on water quality.
رقم الطلب
UNEP/GEMS(02)/G31
تاريخ[Nairobi] : UNEP, 1991.
الوصف
79 p. : ill., graphs, maps, tables
ملاحظات
At head of title: Earthwatch, Global Environment Monitoring System.
On t.p.: Progress in the implementation of the Mar del Plata Action Plan and a Strategy for the 1990s.
Bibliography p. 78.
On t.p.: Progress in the implementation of the Mar del Plata Action Plan and a Strategy for the 1990s.
Bibliography p. 78.