Pfister, James F. <br/><br/>
High strength bars as concrete reinforcement part 6: fatigu-e test / by James. F. Pfister and Eivind Hognestad. 

 - Skokie, Illinois : atories, Development Department 
 - [26] p. 
 - Bulletin D74 / 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. 6, No. 1, 65-84 (January, 1964)".