International Research Seminar on the Vocational Rehabilitation of Deaf Persons (1968 : Washington, D.C.)
[Washington?], [publisher not identified], [1968]
National Conference on Education of the Deaf (1967 : Colorado Springs, Colo.)
Washington : U.S. Dept. of Health, Education, and Welfare; for sale by the Supt. of Docs., U.S. Govt. Print. Off., [1968]