Ha, H. B. <br/><br/>
Field study of pile group action / 
by H. B. Ha and M. W. O. Neill 
 - Washington, D.C. :  U.S. Department of Transportation,  1980 
 - iv, 73 p. ;  28 cm. 
<br/><br/> Report no.FHWA/RD -81/004 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Piling (Civil engineering)
<br/><br/><label>Dewey Class. No.: </label>624.154