00393nam a2200133Ia 450000500170000000800410001702000220005805000230008010000270010324500620013025000080019226000390020065000200023920251229172532.0251229s9999    xx            000 0 und d  a978-1-446-29454-3  aHM  571 .S34 2015   aBradbury, Hilary (ed.) 4aThe Sage handbook of action researchcHilary (ed Bradbury  a3rd  aLos Angelesb Sage referencec2015  aAction Research