Civil engineering reference book 

 - Second 
 - Butterworths  London  1951 
 - 527p.  fig., table 
 -  Volume 2 .
<br/><br/><label>Nat. Bib. No.: </label>340 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Engineering
<br/><br/><label>Universal Decimal Class. No.: </label>624.03  / CIM