Ward, R. C and Robinson, M.  <br/><br/>
Principles of hydrology / 

 - New Delhi,   Tata McGraw Hill,   c2011. 
 - xiv, 450p. ;  ill. ;  22.7 cm.  
<br/><br/><label>ISBN: </label>9781259002243 
<br/><br/><label>LC Class. No.: </label>18617-18621 
<br/><br/><label>Dewey Class. No.: </label>551