Note 81 — Chapter XI · CONSTRUCTION
Reading edition
See also “Ownership and Operation of Trench Excavators by the Water Department of Baltimore,” by V. B. Seims, presented before Am. Water Works Association, June 9, 1921.
Reading edition
See also “Ownership and Operation of Trench Excavators by the Water Department of Baltimore,” by V. B. Seims, presented before Am. Water Works Association, June 9, 1921.