Hanson, J. A. <br/><br/>
Shear strength of lightweight reinforced concrete beams / b-y J. A. Hanson. 

 - Skokie, Illinois : atories, Development Department 
 - [18] p. 
 - Bulletin D22 / Portland Cement Association, Research and De-velopment Laboratories, Development Department .
<br/><br/> "Autorized reprint from copyrighted Journal of the American- Concrete Institute sept. 1958, proceedings Vol. 55, p. 387-"