APA-referens (7:e uppl.)

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

Chicago-referens (17:e uppl.)

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

MLA-referens (9:e uppl.)

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