01000nam a2200253   4500001000800000005001700008008000400025010001700029020002600046040001900072050002100091082001400112245009300126260003800219300003500257440007800292500009700370504005300467650005800520650005100578650003700629700001500666711006500681294462320170725161355.0000  a   90044997   a0139282017 :c$136.95  aUOELcDLCdDLC00aQH540b.T47 199100a574.522000aTerrestrial and aquatic ecosystems :bperturbation and recovery /ceditor, Oscar Ravera.  aNew York :bEllis Horwood,c1991.  a613 p. :bill., maps ;c24 cm. 0aEllis Horwood series in environmental management, science, and technology  aPapers from the Fifth European Ecological Symposium held at Siena, Italy, Sept. 25-29, 1989.  aIncludes bibliographical references and indexes. 0aEcologyxNatural History (General) Biology (General). 0aNaturexEffect of human beings onxCongresses. 0aRestoration ecologyxCongresses.1 aRavera, O.2 aEuropean Ecological Symposiumn(5th :d1989 :cSiena, Italy)