APA-ийн эшлэл(7 дахь хэвлэлт)

Hoffman, L., & Cecchin, G. (2003). Exchanging voices: A collaborative approach to family therapy. Karnac Books.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Hoffman, Lynn, ба Gianfranco Cecchin. Exchanging Voices: A Collaborative Approach to Family Therapy. London: Karnac Books, 2003.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Hoffman, Lynn, ба Gianfranco Cecchin. Exchanging Voices: A Collaborative Approach to Family Therapy. Karnac Books, 2003.