Economic base survey of the Potomac River service area.
By: Prepared for the Corps of Engineers, U.S. Army Engineer District, Washington, D. C.
Contributors: United States. Army. Corps of Engineers.
Publisher: U.S. Govt. Print. Off.
Published: 1961
Place of publication: [Washington
Language: eng
Number of pages: 90
Subjects: Potomac River Valley -- Economic conditions.