Palmer, Helen, <br/><br/>
The Enneagram : 

 -  Harper Collins,  1991. 
 - 420 pages 
<br/><br/><label>ISBN: </label>9780062506832 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Psychology.
<br/><br/><label>Dewey Class. No.: </label>155.264  / PAL