Mah, Ronald <br/><br/>
Difficult behavior in early childhood :  positive discipline for Pre K-3 classroom and beyond / 
Donald Mah. 
 - Thousand Oaks, CA :  Corwin Press,  c2007. 
 - xi, 158 p. : ill. 
<br/><br/> Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Behavior modification--United States.<br/>Early childhood education--United States.<br/>Discipline.