TY  - BOOK
TI  - [Thirteenth progress report] : Investigation of prestressed- reinforced concrete for highway bridges / prepared as a pa-rt of an investigation conduced by The Engineering Experime-nt Station University of Illinois ; in cooperation with the- Division of Highways State of Illinois and U.S. Department- of Commerce Bureau of Public Roads
CY  - Urbana, Ill. : University of Illinois
ER  -