How to see.
Contributors: United States. Social Security Administration.
Series: DHEW publication ; no. (SSA) 73-10063; DHEW publication -- no. (SSA) 73-10063.
Publisher: U.S. Dept. of Health, Education, and Welfare, Social Security Administration : for sale by the Supt. of Docs., U.S. Govt. Print. Off.
Published: 1973
Place of publication: [Washington]
Language: eng
Number of pages: 71
Subjects: Visual perception.