Organization of the Petroleum Exporting Countries.

• OPEC official resolutions and press releases 1960-1983
• Annual Statistical Bulletin, 1981 (Organization of Petroleum Exporting Countries//Annual Statistical Bulletin)
• Facts and figures
• Official resolutions and press releases 1960-1980
• OPEC
• OPEC facts & figures
• OPEC general information and chronology 1960-1992
• OPEC information booklet
• OPEC member country profiles
• OPEC official resolutions and press releases 1960-1990
• OPEC series
• OPEC Statute of the Organization of the Petroleum Exporting Countries