ID:DA01973270
Organization of the Petroleum Exporting Countries
OPEC
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William S. Hein 1983 [Reprint ed.]
Available at 9 libraries
Congressional Information Service 1985- Microfiche ed
Microform (Microfiche)
Available at 1 libraries
Organization of the Petroleum Exporting Countries [19--]
Information Dept., Organization of the Petroleum Exporting Countries
Organization of the Petroleum Exporting Countries Statistics Unit
[Organization of the Petroleum Exporting Countries, Statistics Unit]
Available at 10 libraries
