Geographical areas serviced by Bell and independent telephone companies in the United States
By: [by] B. A. Hart.
Series: OT report 73-1
Publisher: U.S. Dept. of Commerce, Office of Telecommunications; for sale by the Supt. of Docs., U.S. Govt. Print. Off.
Published: 1973
Place of publication: [Washington]
Language: eng
Number of pages: 117
Subjects: Telephone -- United States.