Overman, Michael. <br/><br/>
Water :  solutions to a problem of supply and demand / 
Michael Overman. 
 - Rev. ed. 
 - Milton Keynes :  Open University Press,  1968. 
 - 204 s. :  illustrations 
<br/><br/>Bibliografi: s. 199. 
<br/><br/><label>ISBN: </label>0335000460 9780335000463 
<br/><br/><label>Dewey Class. No.: </label>628/.1  / W324