Tredgold R. F., Soddy K., Tredgold A. F.
Tredgold's Textbook of mental deficiency subnormality
- 10th ed.
- London Bailliere, Tindall and Cox 1963
- 528 p. 22 cm.
- .
Originally authored by : A. F. Tredgold
Mental Retardation
Mental Retardation
WM300 / TRE