Cita APA

(1969). OPEC bulletin: Weekly digest of worl press. --. Vienna: Organization of the Petroleum Exporting Countries.

Citación estilo Chicago

OPEC Bulletin: Weekly Digest of Worl Press. --. Vienna: Organization of the Petroleum Exporting Countries, 1969.

Cita MLA

OPEC Bulletin: Weekly Digest of Worl Press. --. Vienna: Organization of the Petroleum Exporting Countries, 1969.

Precaución: Estas citas no son 100% exactas.