The blind population of the United States, 1920
Contributors: Hill, Joseph A. (Joseph Adna), 1860-1938; Truesdell, Leon E. (Leon Edgar), 1880-1979; Best, Harry, 1880-1971
Publisher: U. S. Govt. print. off.
Published: 1928
Place of publication: Washington
Language: eng
Number of pages: 191
Subjects: Blind; Deafblind people
Notes: At head of title: Department of commerce. William F. Whiting, secretary. Bureau of the census. W. M. Steuart, director.

"Prepared under the supervision of Dr. Joseph A. Hill, assistant to the director of the census, and Leon E. Truesdell, chief statistician for population. The text analysis was written by Dr. Harry Best, professor of sociology at the University of Kentucky."--p. 2.