The headwaters district
Subtitle: a history of the Pittsburgh District, U.S. Army Corps of Engineers
By: by Leland R. Johnson.
Publisher: s.n.
Published: 1979
Place of publication: [Pittsburgh? Pa
Language: eng
Number of pages: 380
Subjects: United States. Army. Corps of Engineers. Pittsburgh District -- History.
Notes: Bibliography: p. 335-362.
Includes index.