APA (7th ed.) Zitazioa

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

Chicago Style (17th ed.) Zitazioa

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

MLA (9th ed.) Zitazioa

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

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