The headwaters district : a history of the Pittsburgh District, U.S. Army Corps of Engineers / by Leland R. Johnson.
|Main Author:||Johnson, Leland R.|
[Pittsburgh? Pa. : s.n., 1979?]
> Corps of Engineers.
> Pittsburgh District
380 p. :
ill. (some col.) ;
|Original Classification Number:||TA23.1 .J63|
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