Riso, Don Richard. <br/><br/>
Understanding the enneagram :  the practical guide to personality types / 
Don Richard Riso. 
 - Boston :  Houghton Mifflin,  1990. 
 - x, 288 p. :  ill. ;  22 cm. 
<br/><br/>Includes bibliographical references (p. [277]-279). 
<br/><br/><label>ISBN: </label>0395520266 :  $19.95 0395521483 (pbk.) 
<br/><br/><label>LCCN: </label>89038806 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Enneagram.<br/>Self-evaluation.
<br/><br/><label>LC Class. No.: </label>BF698.3  / .R57 1990 
<br/><br/><label>Dewey Class. No.: </label>155.2/6