Telegraph systems, 1907.
Contributors: United States. Bureau of the Census
Series: Bulletin / Bureau of the Census -- 102; Bulletin (United States. Bureau of the Census) -- no. 102.
Publisher: G.P.O.
Published: 1909
Place of publication: Washington
Language: eng
Number of pages: 47
Subjects: Telegraph -- United States -- Statistics.
Notes: With: Industrial districts, 1905 -- Washington : G.P.O., 1909.