Hawkins, N.M. <br/><br/>
Anchorage zone stresses in prestressed concrete beams / by -N.M. Hawkings, V. Srinivasagopalan and M.A. Sozen 

 - Urbana, Illinois : University of Illinois, Department of Civil Engineering 
 - [105] p. 
 - 207 Civil engineering studies. Structural research series ; no.- .