توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Kugel, R. B., & Wolfensberger, W. (1969). Changing patterns in residential services for the mentally retarded. President's Committee on Mental Retardation.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Kugel, Robert B., و Wolf Wolfensberger. Changing Patterns in Residential Services for the Mentally Retarded. Washington: President's Committee on Mental Retardation, 1969.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

Kugel, Robert B., و Wolf Wolfensberger. Changing Patterns in Residential Services for the Mentally Retarded. President's Committee on Mental Retardation, 1969.