Ward, Porter E.  1925- <br/><br/>
Hydrology of Guam / 
by Porter E. Ward, H. Hoffard and Dan A. Davis. 
 -- Washington :   United States Government Printing Office,   1965 
 - 28 p. + map. -- 
 (Geological Survey Professional Paper  ;  403-H).
<br/><br/><label>Subjects--Topical Terms: </label><br/>Guam ( Islas Marianas )<br/>Hidrología
<br/><br/><label>Universal Decimal Class. No.: </label>556(967.2)