Ward <br/><br/>
Principles of Hydrology  3rd. Ed. 
R. Ward, M. Robinson 
 - [3rd. Edition] 
 - London, UK  McGraw-Hill  1990 
 - xvi, 356p.  ill.  24 cm 
<br/><br/><label>ISBN: </label>0071006389 
<br/><br/><label>LCCN: </label>8832409 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hydrology