Candela L. ed. <br/><br/>
Proceedings of the workshop on Agricultural threats to groundwater quality, Zaragoza, Spain, 27-30 October, 1996 

 - Paris  UNESCO/IHP  1998 
 - 251 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural threats to groundwater quality
<br/><br/><label>Dewey Class. No.: </label>(047.3)556.3:63(46) C17A