Office of Education: Romaine P. Mackie ... and Harold M. Williams ... ; Office of Vocational Rehabilitation: Donald H. Dabelstein ... and Joseph M. LaRocca ... ; Project on Technical Planning, American Association on Mental Deficiency: Rick F. Heber ..
Bulletin (United States. Office of Education); 1959, no. 28
Rehabilitation service series ; no. 507
Bulletin (United States. Bureau of Education)
Bulletin (United States. Office of Education). National Survey of Secondary Education monograph