Rafael , L. Bras. <br/><br/>
Hydrology: an introduction to hydrologic science/ 
Bras , L. R. 
 - Canada.  Addison - Wesley   1990 
<br/><br/><label>ISBN: </label>0201059223 
<br/><br/><label>LC Class. No.: </label>GB661.2.B7 1990