Gupton, Sandra Lee. <br/><br/>
The instructional leadership toolbox  a handbook for improving practice /  [electronic resource] : 
Sandra Lee Gupton. 
 - 2nd ed. 
 - Thousand Oaks, Calif. :  London :  Corwin ;  Sage [distributor],  2010. 
 - 1 online resource (xv, 199 p.) 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9781452219226 (ebook) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Educational leadership--United States.<br/>School principals--United States.