Nelson, Barbara Scott <br/><br/>
The effective principal :  instructional leadership for high-quality learning / 
Barbara Scott Nelson and Annette Sassi 
 - New York :  Teachers College Press,  2005 
 - ix, 205 p. ;  24 cm. 
 - Critical issues in educational leadership series .
<br/><br/>Includes bibliographical references (p. 185-192) and index 
<br/><br/><label>ISBN: </label>080774607X (pbk.) 0807746061 (pbk.) :  RM98.37 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Elementary school principals--United States<br/>Educational leadership--United States<br/>Mathematics--Study and teaching (Elementary)--United States