Collis, John Srewart,    1900- <br/><br/>
The moving waters /    
J. S. Collis. 
 - London :   Rupert Hart-Davis,   1955. 
 - 246 p. :    ill. ;    21 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hydrology.--------
<br/><br/><label>Dewey Class. No.: </label>551.573