The change from manual to dial operation in the telephone industry
By: Ethel L. Best
Contributors: United States. Women's Bureau
Series: Bulletin of the Women's Bureau -- no. 110; Bulletin (United States. Women's Bureau) -- 110
Publisher: U.S. G.P.O.
Published: 1933
Place of publication: Washington [D.C.]
Language: eng
Number of pages: 15
Subjects: Telephone, Dial
Notes: Cover title

At head of title: United States Dept. of Labor, Women's Bureau