Summary petroleum and selected mineral statistics for 120 countries, including Offshore areas / 
by John P. Albers...[et al.]. 
 -- Washington :   United States Government Printing Office,   1973 
 - 149 p. -- 
 (Geological Survey Professional Paper  ; 817).
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mineralogía
<br/><br/><label>Universal Decimal Class. No.: </label>549