Παραπομπή APA

Kugel, R. B., & Wolfensberger, W. (1969). Changing patterns in residential services for the mentally retarded. Washington, D.C: Departmentof Health, Education, and Welfare.

Παραπομπή Chicago Style

Kugel, Robert B., and Wolf Wolfensberger. Changing Patterns in Residential Services for the Mentally Retarded. Washington, D.C: Departmentof Health, Education, and Welfare, 1969.

Παραπομπή MLA

Kugel, Robert B., and Wolf Wolfensberger. Changing Patterns in Residential Services for the Mentally Retarded. Washington, D.C: Departmentof Health, Education, and Welfare, 1969.

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