00386nam a2200145Ia 4500003000600000005001700006008004100023020001800064040002500082082001900107100002100126245003600147260002300183500003400206NORSU20240708022903.0240214s9999    xx            000 0 und d  a1-4129-1759-X  aNORSU-DumcNORSU-Dum  a371.2 Si2 2006  aSigford, Jane L. 4aThe effective school leader’s  bCorwin Pressc2006  aincludes references and index