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*1001 $aSutton, David B$0(NO-TrBIB)90661510$_122089900
*24510$aEcology: selected concepts$cby David B. Sutton, N. Paul Harmon
*260  $aNew York$bWiley$cc1973
*300  $axv, 287 s.
*4900 $aSelf-teaching guides
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*7001 $aHarmon, N. Paul$0(NO-TrBIB)90758027$_122090100
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