Tredgold's Mental retardation.
Contributors: Tredgold, Roger Francis, 1911-; Soddy, Kenneth.
Edition: 11th ed. by R. F. Tredgold and K. Soddy, with the assistance of E. W. Dunkley [and others]
Publisher: Williams and Wilkins
Published: 1970
Place of publication: Baltimore
Language: eng
Number of pages: 490
Subjects: Mental retardation
Notes: Bibliography: p. [477]-486.
First ed., 1908, has title: Mental deficiency (amentia)