00853nam a2200253 a 450000100060000000300080000600500170001400800390003102000170007002000240008703500190011104000230013004100080015308200280016110000300018924500910021926000680031030000410037850400680041965000240048765000390051170000240055074000250057437300BD-RjUL20211209052610.0141123s1992    enkab    b    001 0 eng  a1852930217 :  a1852931272 (pbk.) :  a(BD-RjUL)37403  aDLCcDLCdDLCbeng  aeng00a574.52632220bJEF 19921 aJeffries, Mike J.,d1958-10aFreshwater ecology :bprinciples and applications /cMichael Jeffries and Derek Mills.  aLondon ;aNew York ;aNew Delhi ;bCBS;bBelhaven Press,c1992.  aviii, 285 p. :bill., maps ;c24 cm.  aIncludes bibliographical references (p. [254]-275) and indexes. 0aFreshwater ecology. 0aNaturexEffect of human beings on.1 aMills, Derek Henry.0 aFresh water ecology.