Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

Organization of the Petroleum Exporting Countries. editor. OPEC Bulletin. Vienna: Organization of the Petroleum Exporting Countries.

Cita MLA (9a ed.)

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

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