00494nam a2200169Ia 450000100060000000800410000602000150004704000130006208200200007510000170009524501040011226000490021630000110026554600070027665000240028370000170030761216141120s9999    xx            000 0 und d  a076195094x  cPK-LaUMT  aT 300.72bCLA-E  aClarke, Alan  aEvaluation researchban introduction to principles, methods and practicecClarke, Alan|Dawson, Ruth  aLondon,U.K.:bSage Publications, Inc.,c1999  a216 p.  aEN  aEvaluation research  aDawson, Ruth