Special features in the education of the blind during the biennium, 1918-1920 /
by Edward E. Allen.
- Washington : G.P.O., 1921.
- 14 p. ; 23 cm.
- Bulletin / Department of the Interior, Bureau of Education ; 1921, no. 16 .
- Bulletin (United States. Bureau of Education) ; 1921, no. 16 .