Mercer, J; Sarner, L; Rosa, L (2006), Attachment therapy on trial: The torture and death of Candace Newmaker, Child Psychology and Mental Health, chapter by Costa G., Westport, CT: Praeger Publishers, ISBN0-275-97675-0, ISSN1538-8883, OCLC51242100.
Mercer, J; Sarner, L; Rosa, L (2006), Attachment therapy on trial: The torture and death of Candace Newmaker, Child Psychology and Mental Health, chapter by Costa G., Westport, CT: Praeger Publishers, ISBN0-275-97675-0, ISSN1538-8883, OCLC51242100.