WILLIAMSON, ALEX K. <br/><br/>
GROUND-WATER FLOW IN THE CENTRAL VALLEY, CALIFORNIA 

 - WASHINGTON: USDI,  1989 
 - 127P; ILLUST 
 - U.S.GEOLOGICAL SURVEY PROFESSIONAL PAPER 1401-D .
<br/><br/><br/>ENG 
<br/><br/><label>Subjects--Topical Terms: </label><br/>GROUNDWATER FLOW-CALIFORNIA-CENTRAL VALLEY.