Occurrence of nonpegmatite Beryllium in the United States / 
by Lawrence A. Warner...[et al.]. 
 -- Washington :   United States Government Printing Office,   1959 
 - 198 p. + 1 map. -- 
 (Geological Survey Professional Paper  ; 318).
<br/><br/><label>Subjects--Topical Terms: </label><br/>Estados Unidos<br/>Yacimientos de Berilio
<br/><br/><label>Universal Decimal Class. No.: </label>553.684(73)