Alminas, Henry V. <br/><br/>
Geochemistry, mineralogy and geochoronology of the U.S. Virgin Islands / 
by Henry V. Alminas, Eugene E. Foord and Robert E. Tucker 
 - Washington :  U.S. Government Printing Office,  1994 
 - 36 p. :  ill. ;  27 cm. 
 - U.S. Geological Survey bulletin ;  2057 .