Gaya APA

Keyes, M, F. (1992). Emotions and the Enneagram: Working through your shadow life script, rev. ed. . Muir Beach: Muir Beach Molysdatur Publications.

Gaya MLA

Keyes, Margaret, Frings. "Emotions and the Enneagram: Working through your shadow life script, rev. ed. ". Muir Beach: Muir Beach Molysdatur Publications, 1992. Buku.