Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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