Mental retardation: the known and the unknown
Subtitle: information as of February 1, 1975
Contributors: Transaction Systems Inc
Series: Century of decision series; DHEW publication no. (OHD) 76-21008; Century of decision series
Publisher: Presidents Committee on Mental Retardation : for sale by the Supt. of Docs., U. S. Govt. Print. Off.
Published: 1975
Place of publication: Washington
Language: eng
Number of pages: 115
Subjects: Mental retardation
Notes: "Developed under Department of Health, Education and Welfare Contract No. HEW-OS-74-289 by Transaction Systems Inc."

Includes index

Bibliography: p. 102-110