Organization of Petroleum Exporting Countries (OPEC), 1973 - Maps.com (Firm); ProQuest (Firm) ([S.l.] : Maps.com, 1999)
Electronic reproduction. Ann Arbor, MI : ProQuest, 2015. Available via World Wide Web. Access may be limited to ProQuest affiliated libraries.
Keywords: Organization of Petroleum Exporting Countries -- Maps; World maps; Petroleum -- Maps; Electronic books