The Division of Highways. State of Illinois.U.S. Department of Commerce. Bureau of Public Roads
"September 1960.""Issued as a part of the Ninth progress report of the Investigation of prestressed ...
"Prepared as a part of the First Progress Report of the Investigation of Prestressed Concrete for Hi...
Cover title.Prepared as part of an investigation conducted by the Engineering Experiment Station, Un...
The Division of Highways. State of Illinois.The U.S. Department of Commerce. Bureau of Public Roads....
The Division of Highways. State of Illinois.U.S. Department of Commerce. Bureau of Public Roads
The Division of Highways. State of Illinois.The U.S. Department of Commerce. Bureau of Public Roads
The Division of Highways. State of Illinois.The Bureau of Public Roads. U.S. Department of Commerc
The Division of Highways. State of Illinois.The Bureau of Public Roads. U.S. Department of Commerc
The Division of Highways. State of Illinois.U.S. Department of Commerce. Bureau of Public Roads
The Division of Highways. State of Illinois.The Bureau of Public Roads. U.S. Department of Commerc
The Division of Highways. State of Illinois.The U.S. Department of Commerce. Bureau of Public Roads....
The Bureau of Public Roads. U.S. Department of CommerceThe Division of Highways. State of Illinois
The Division of Highways. State of Illinois.The U.S. Department of Commerce. Bureau of Public Roads....
The Division of Highways. State of Illinois.The U.S. Department of Commerce. Bureau of Public Roads....
The Division of Highways. State of Illinois.The U.S. Department of Commerce. Bureau of Public Roads....
"September 1960.""Issued as a part of the Ninth progress report of the Investigation of prestressed ...
"Prepared as a part of the First Progress Report of the Investigation of Prestressed Concrete for Hi...
Cover title.Prepared as part of an investigation conducted by the Engineering Experiment Station, Un...
The Division of Highways. State of Illinois.The U.S. Department of Commerce. Bureau of Public Roads....
The Division of Highways. State of Illinois.U.S. Department of Commerce. Bureau of Public Roads
The Division of Highways. State of Illinois.The U.S. Department of Commerce. Bureau of Public Roads
The Division of Highways. State of Illinois.The Bureau of Public Roads. U.S. Department of Commerc
The Division of Highways. State of Illinois.The Bureau of Public Roads. U.S. Department of Commerc
The Division of Highways. State of Illinois.U.S. Department of Commerce. Bureau of Public Roads
The Division of Highways. State of Illinois.The Bureau of Public Roads. U.S. Department of Commerc
The Division of Highways. State of Illinois.The U.S. Department of Commerce. Bureau of Public Roads....
The Bureau of Public Roads. U.S. Department of CommerceThe Division of Highways. State of Illinois
The Division of Highways. State of Illinois.The U.S. Department of Commerce. Bureau of Public Roads....
The Division of Highways. State of Illinois.The U.S. Department of Commerce. Bureau of Public Roads....
The Division of Highways. State of Illinois.The U.S. Department of Commerce. Bureau of Public Roads....
"September 1960.""Issued as a part of the Ninth progress report of the Investigation of prestressed ...
"Prepared as a part of the First Progress Report of the Investigation of Prestressed Concrete for Hi...
Cover title.Prepared as part of an investigation conducted by the Engineering Experiment Station, Un...