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000011969 001__ 11969
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000011969 0500_ $$aQH75$$b.E24
000011969 082__ $$a333.9/5
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000011969 1001_ $$aEckholm, Erik P.
000011969 24510 $$aDisappearing species :$$bthe social challenge /$$cErik Eckholm.
000011969 260__ $$a[Washington] :$$bWorldwatch Institute,$$c1978.
000011969 300__ $$a38 p. ;$$c22 cm.
000011969 440_0 $$aWorldwatch paper ;$$v22
000011969 504__ $$aIncludes bibliographical references.
000011969 650_0 $$aNature conservation.
000011969 650_0 $$aRare animals.
000011969 650_0 $$aRare plants.
000011969 85200 $$bgen$$hQH75$$i.E24
000011969 909CO $$ooai:library.usi.edu:11969$$pGLOBAL_SET
000011969 980__ $$aBIB
000011969 980__ $$aBOOK