OPEC bulletin. 
 Organization of the Petroleum Exporting Countries bulletin  Organization of Petroleum Exporting Countries bulletin  Bulletin 

 - Vienna, Austria :  Organization of the Petroleum Exporting Countries 
 - volumes :  illustrations ;  25-30 cm 
 - Ten no. a year,  <2007-> 
 - Bimonthly,  2003- Monthly,  1997-2002 Ten no. a year,  <1987>-1996 
 - Began with: Nov. 1966. 
<br/><br/>Issues for <May/June 2006-> called also <06, 5/6-> Issues for <Nov./Dec. 2008-> called <11-12/08-> on cover. Issues for Nov. 1966-June 1967 numbered according to month and year; issues for Sept. 1967-Dec. 1967 numbered: no. 8 (Sept. 1967)-no. 10 (Dec. 1967); issues for Jan. 1968-1973: numbering each year begins with no. 1; issues for <1978-2008> have vol. numbering: <Vol. 9, no. 20 (May 15, 1978)-v. 39, no. 9 (Nov./Dec. 2008)> Some numbers issued in combined form. 
<br/><br/>
 = OPEC bulletin 
 = OPEC bull. 
<br/><br/><label>LCCN: </label>85648335  
<br/><br/><label>Subjects--Corporate Names: </label><br/>Organization of Petroleum Exporting Countries--Periodicals.<br/>Organization of Petroleum Exporting Countries.
<br/><br/><label>Subjects--Topical Terms: </label><br/>Petroleum industry and trade--Periodicals.<br/>Petroleum industry and trade.<br/>Aardolie.<br/>Economische aspecten.
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Periodicals.
<br/><br/><label>LC Class. No.: </label>HD9560.1  / .O54 
<br/><br/><label>Dewey Class. No.: </label>341.7/5472282/0601