%0 Journal Article
%T Effect of quality of illumination and distance of observation upon performance in the Ishihara test
%J American journal of optometry and archives of American Academy of Optometry
%D 1947
%A Volk, D.
%A Fry, G. A.
%V 24
%N 3
%P 99-122
%X <p>[Abstract unavailable]</p><p>Language: en</p>
%G en
%I American Journal of Optometry Publishing Association
%@ 0002-9408
%U http://dx.doi.org/