A policy analysis of Dutch river dike improvements :  trading off safety, cost, and environmental impacts / 
Warren E. Walker...[et al] 
 - 29 pages ;  28 cm. 
 - The Rand paper series;  P-7816 .
 - The Rand paper series;  P-7816 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Dikes (Engineering)