Vocational aptitude tests for the blind /
Samuel P. Hayes.
APA Citation
Hayes, S. Perkins. (1946). Vocational aptitude tests for the blind. Watertown, MA: Perkins Institution and Massachusetts School for the Blind.
MLA Citation
Hayes, Samuel Perkins, 1874-. Vocational Aptitude Tests for the Blind. Watertown, MA: Perkins Institution and Massachusetts School for the Blind, 1946.
Warning: These citations may not always be complete (especially for serials).