Mah, Ronald <br/><br/>Difficult behavior in early childhood :  positive discipline for PreK-3 classrooms and beyond / Ronald Mah.  -- California:  Corwin Press.,  2007. <br/>xi, 158 p.:  ill.;  26 cm.  <br/><br/> Includes bibliographical references and index.   <br/><br/><label>ISBN: </label>9781412937153 <br/><br/><label>Subjects--Topical Terms: </label><br/>Behavior modification -- United States.<br/>Early childhood education -- United States.<br/>Discipline.<br/><br/><label>Dewey Class. No.: </label>Res 370.15'28 M277 2007