APA (7th ed.) Citation

OPEC. (1966). OPEC bulletin: Weekly digest of world press.

Chicago Style (17th ed.) Citation

OPEC. OPEC Bulletin: Weekly Digest of World Press. Vienna, 1966.

MLA (9th ed.) Citation

OPEC. OPEC Bulletin: Weekly Digest of World Press. 1966.

Warning: These citations may not always be 100% accurate.