American Psychological Association
Bessing, Maria, & Nogosek, Robert J, & O`Leary, Patrick H ( 1984 ). Enneagram a Journey of Self Discovery ( 00 ed. ). Dimension Books.
Modern Language Association
Bessing, Maria and Nogosek, Robert J and O`Leary, Patrick H. Enneagram a Journey of Self Discovery . Dimension Books. 1984
Chicago Citation
Bessing, Maria and Nogosek, Robert J and O`Leary, Patrick H. Enneagram a Journey of Self Discovery . 00 .New Jersey
: Dimension Books, 1984.
American Medical Association
Bessing, Maria and Nogosek, Robert J and O`Leary, Patrick H. Enneagram a Journey of Self Discovery . Dimension Books; 1984.
