| 
by: John Waters · Ronna Phifer-Ritchie Ph.DPaperback 
 
 
 ISBN: 978-0-7153-2837-8 ISBN-10: 0-7153-2837-9 David & Charles · 2007  | 
| See also (possibly by other authors): | ||
| 2001 | Hardcover | Thorsons First Directions – The Enneagram (Thorsons First Directions S.) | 
| Taschenbuch | Enneagram | |