A text-book of mental deficiency
By: first compiled by A.F. Tredgold.
Contributors: Tredgold, Roger Francis, 1911-; Soddy, Kenneth.
Edition: 9th ed. / by R.F. Tredgold and K. Soddy.
Publisher: Williams and Wilkins
Published: 1956
Place of publication: Baltimore
Language: eng
Number of pages: 480
Subjects: Mental retardation
Notes: Bibliography: p. 466-473.