Cita APA (7th ed.)

Levinson, A. (1955). The mentally retarded child: A guide for parents; prepared under auspices of the Dr. Julian D. Levinson Research Foundation. George Allen & Unwin.

Cita Chicago (17th ed.)

Levinson, Abraham. The Mentally Retarded Child: A Guide for Parents; Prepared Under Auspices of the Dr. Julian D. Levinson Research Foundation. London: George Allen & Unwin, 1955.

Cita MLA (8th ed.)

Levinson, Abraham. The Mentally Retarded Child: A Guide for Parents; Prepared Under Auspices of the Dr. Julian D. Levinson Research Foundation. George Allen & Unwin, 1955.