Gaya APA
Keyes, M, F. (1990).
Emotions and the Enneagram: Working through your shadow life script. .
Muir Beach:
Muir Beach Molysdatur Publ.
Gaya MLA
Keyes, Margaret, Frings.
"Emotions and the Enneagram: Working through your shadow life script. ".
Muir Beach:
Muir Beach Molysdatur Publ,
1990.
Buku.