Foster, Helen Laura  1919- <br/><br/>
Geology of Ishigaki-Shima Ryukyu-retto / 
by Helen L. Foster. 
 -- Washington :   United States Government Printing Office,   1965 
 - 119 p. + map. -- 
 (Geological Survey Professional Paper  ;  399-A).
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geología<br/>Islas Ryukyu ( Japón )
<br/><br/><label>Universal Decimal Class. No.: </label>55(528.3)