APA (7th ed.) Citation

Kanner, L. (1974). A history of the care and study of the mentally retarded (3. print.). Thomas.

Chicago Style (17th ed.) Citation

Kanner, Leo. A History of the Care and Study of the Mentally Retarded. 3. print. Springfield, Ill: Thomas, 1974.

MLA (9th ed.) Citation

Kanner, Leo. A History of the Care and Study of the Mentally Retarded. 3. print. Thomas, 1974.