20 biggest mistakes principles make and how to avoid them / 
Marilyn L. Grady. 
 - Usa:   Corwin Press,   [2004].  
 - 126p. ;  23cm. 
<br/><br/>Includes index. 
<br/><br/><label>ISBN: </label>0761946012 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Educational leadership<br/>School principals
<br/><br/><label>Dewey Class. No.: </label>371.2