Monocular visual acuity of persons 4-74 years, United States, 1971-1972 / [Jean Roberts and Jacqueline Ludford].

0840600836 :

Rockville, Md. : Dept. of Health, Education, and Welfare, Public Health Service, Health Resources Administration, National Center for Health Statistics ; Washington : for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1977.

iii, 67 p. : ill. ; 26 cm.

Issued March 1977.

English

June 01, 2002

Bibliography: p. 24.