Riso, Don Richard. <br/><br/>
Personality types :   using the enneagram for self-discovery /  
Don Richard Riso with Russ Hudson. 
 - Rev. ed. 
 - Boston :  Houghton Mifflin,  1996. 
 - xxvi, 514 pages :   illustrations ;   21 cm. 
<br/><br/>Includes bibliographical references (p. [495]-497) and index. 
<br/><br/><label>ISBN: </label>9780395798676 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Typology (Psychology)<br/>Enneagram.
<br/><br/><label>Dewey Class. No.: </label>155.26 RIS 1996