00391nam a22001577a 4500003000400000020001500004082001600019100002200035245005400057260003100111300001000142546001300152650002400165650002500189650001900214OSt  a1566705991  a628bKAN/EC  aKangas, Patrick C  aEcological engineering:bprinciples and practice   aNew YorkbCRC Press c2004  a452p.  aEnglish   aTreatment wetlands   aSoil bioengineering   aMicrocosmology