Ward, R. C. <br/><br/>
Principles of hydrology / 
R. C. Ward. 
 - 2nd ed. 
 - London :  McGraw-Hill,  c1975. 
 - xvi, 367 p. :  ill. ;  23 cm. 
<br/><br/>Includes reference & index. 
<br/><br/><label>ISBN: </label>0070840555 (hbk.) 
<br/><br/><label>LCCN: </label>74032444  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental Sciences.<br/>Hydrology.
<br/><br/><label>LC Class. No.: </label>GB661  / .W3 1975 
<br/><br/><label>Dewey Class. No.: </label>551.4  / WAR