BLUMBERG (Arthur) and GREENFIELD (William). <br/><br/>
Effective principal perspectives on school leadership. 

 - Boston.  Allyn & Bacon  1980 
 - viii,280 
<br/><br/><label>ISBN: </label>0 205 06812 X 
<br/><br/><label>Dewey Class. No.: </label>371.2012 BLUE