Cita APA

(1971). Selected documents of the international petroleum industry. Vienna: Organization of the Petroleum Exporting Countries.

Chicago Style Citation

Selected Documents of the International Petroleum Industry. Vienna: Organization of the Petroleum Exporting Countries, 1971.

Cita MLA

Selected Documents of the International Petroleum Industry. Vienna: Organization of the Petroleum Exporting Countries, 1971.

Atenció: Aquestes cites poden no estar 100% correctes.