Brown, L. Donald <br/><br/>
Artifical recharge to a freshwater :  senstitive brrackish-water sand aquifer, norfolk, virglm / 
by Donald L. Brown and William D. Silvey 
 - Washington, D. C. :  United States Government Printing Office,  1977 
 - v, 53 p. :  map. ;  29 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water--Purification<br/>Freshwater biology<br/>Biochemistry
<br/><br/><label>Dewey Class. No.: </label>628