Mattock, Alan H. <br/><br/>
Precast-prestressed concrete bridges 6. test of half-scale -highway bridge continuous over two spans / by Alan H. Matto-ck and Paul H. Kaar 

 - Skokie, Illinois : atories, Development Department 
 - [48] p. 
 - Bulletin D51 / Portland Cement Association, Research and De-velopment Laboratories, Development Department .
<br/><br/> "Reprinted from the Journal of the PCA Research and Develop-ment Laboratories Vol. 3, No. 3, 30-70 (september, 1961)."