OPEC bulletin.

Bibliografiset tiedot
Yhteisötekijä:	Organization of Petroleum Exporting Countries
Aineistotyyppi:	Continuing Resource
Kieli:	English
Julkaistu:	Vienna Organization of the Petroleum Exporting Countries Austria
Aiheet:	Organization of Petroleum Exporting Countries > Periodicals. Petroleum industry and trade > Periodicals. Organization of Petroleum Exporting Countries.