Casagrande, Arthur. <br/><br/>
Tension zones in embankments caused by conduits and cutoff -walls / by Arthur Casagrande and Sergio W. Covarrubias. 

 - Cambridge, Mass. : Harvard University 
 - [41] p. 
 - Harvard soil mechanics Series ; no. 85 .
<br/><br/> "Report to U.S. Army Engineer Waterways Experiment Station - in partial fulfillment of Contract no. DACW39-69-C-0029 wi-th Harvard University".