Johnstown channel improvement, Johnstown, Pa. :
being constructed under supervision of the Corps of Engineers, U.S. Army, Pittsburgh District /
Pittsburgh Engineer District, Corps of Engineers, U.S. Army.

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Related Names
United States. Army.
Language(s)
English
Published
[Philadelphia, Pa. : The District], 1939.
Subjects
Flood control > Pennsylvania > Johnstown.
Physical Description
11 leaves : ill., map ; 28 cm.
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