Watershed management fiel manual/ 
E.A.O 
 - xxi,196p/29cm 
 - Serie FAO conservation guide 13/5 .
<br/><br/><label>ISBN: </label>92-5-102789-X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>CUENCAS HIDROGRAFICAS
<br/><br/><label>Dewey Class. No.: </label>333.917  / FOO 1989