Friend - a global perspective 2002-2006 /  
edited by Erick Servat and Sigfiried Demuth. 
 - 2006.  IHP/HWRP- secretariat,  Koblenz. 
 - xiv.202p. 
<br/><br/> Includes annex. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hydrology.