Bartlett, Carolyn The enneagram field guide: notes on using the enneagram in counseling , therapy and personal growth/ Carolyn Bartlett - Portland: The Enneagram Consortium, c2003. - vi, 168 pages: illustration; 22cm. Includes index. ISBN: 1-932601-01-5 Subjects--Topical Terms: 1. Enneagram. Dewey Class. No.: Circ. 155.2 B289e 2003