Tenth progress report: investigation of prestressed concret-e for highway bridges / prepared as a part of an investigat-ion conducted by the Engineering Experiment Station Univers-ity of Illinois ; in cooperation with the Division of Highw-ays State of Illinois and U.S. Department of Commerce Burea-u of Public Roads 

 - Urbana, Ill. : University of Illinois 
 - [248] p. 
 - Progress report ; no.10 .