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100   $a20010426d1990----km-y0itay50------ba
101 0 $aeng
105   $ay-------001yy
200 1 $aWorld resources 1990-91$fa report by the World Resources Institute$gin collaboration with the United Nations Environment Programme and the United Nations Development Programme
210   $aOxford$cOxford University Press$d1990
215   $aXIV, 383 p.$d28 cm
710 02$aWorld Resources Institute$034926
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