Wilhite, Donalad A. (Ed.) <br/><br/>
Drought : a global assessment: Vol.1... Chap. 1- 4 

 - London  Routledge  2000 
 - xxviii, 396p 
<br/><br/><label>Subjects--Topical Terms: </label><br/>U21
<br/><br/><label>Dewey Class. No.: </label>U21  / No.1