Mental retardation
Subtitle: the known and the unknown
By: [developed ... by Transaction Systems Inc.]
Contributors: United States. President's Committee on Mental Retardation.
Series: DHEW publication ; no. (OHD) 76-21008; DHEW publication -- no. (OHD) 76-21008.
Publisher: President's 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 -- United States.; Mentally handicapped -- United States.
Notes: "Developed under Department of Health, Education and Welfare Contract No. HEW-OS-74-289 ..."

"Information as of February 1, 1975."

Includes index.

Bibliography: p. 102-110.