APA (7th ed.) Citation

(1988). The enneagram: Understanding yourself and the others in your life / Helen Palmer.

Chicago Style (17th ed.) Citation

The Enneagram: Understanding Yourself and the Others in Your Life / Helen Palmer. 1988.

MLA (9th ed.) Citation

The Enneagram: Understanding Yourself and the Others in Your Life / Helen Palmer. 1988.

Warning: These citations may not always be 100% accurate.