Manual on terminology and classification in mental retardation / Grossman, Herbert J., 1923- ed. Mental retardation Classification. Mental retardation Terminology. RC570 .M26 1973 616.8/588/012 Previous ed. prepared by R. F. Heber and published as a monograph supplement to the American journal of mental deficiency, v. 64, no. 2 (September 1959). Earlier vols., published under title Statistical manual for the use of institutions for mental defectives, were prepared by the Association's Committee on Statistics. [Washington]: American Association on Mental Deficiency, 1973. 1973. 1973 Text xi, 180 p. eng