A Double X-Y platform for randsight-type instruments : prepared for the Department of Health, Education, and Welfare /

Bibliographic Details

Corporate Author:	United States. Department of Health, Education, and Welfare
Other Authors:	Genensky, S. M. (Samuel M.)
Format:	Book
Language:	English
Published:	Santa Monica, CA : Rand, 1974.
Subjects:	Blind, Apparatus for the.