APA-ийн эшлэл(7 дахь хэвлэлт)

Heard, D., & Lake, B. (2009). The challenge of attachment for caregiving. Karnac.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Heard, Dorothy, ба Brian Lake. The Challenge of Attachment for Caregiving. London: Karnac, 2009.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Heard, Dorothy, ба Brian Lake. The Challenge of Attachment for Caregiving. Karnac, 2009.