Textbook of mental deficiency (subnormality)
- 10th ed. by R. F. Tredgold and K. Soddy, with the assistance of E. W . Dunkley.
- London : Tindall & Cox , 1963.
- xii, 530 p. : ill., port., diagrs ; 23 cm.
First published in 1908 under the titles : Mental defiency (amentia)