Stark, David. <br/><br/>
Studies of the relationships among crack patterns, cover ov-er reinforcing steel, and development of surface spalls in -bridge decks / by David Stark. 

 - Skokie, Illinois : atories, Cement and Concrete Research Institute 
 - 8 p. 
 - Research and Development Bulletin; RD 020.01E / Portland Ce-ment Association .