Flood Control Methods 

 - United Nations 
 - 45p.  ILL.,Cht.,Fig and Table 
<br/><br/><label>Nat. Bib. No.: </label>1112 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Engineering
<br/><br/><label>Universal Decimal Class. No.: </label>627  / FLO