APA (7th ed.) Citation

Opec. (1983). Opec Aid And Opec Aid Institutions: :A Profile (1. Edisyon.). Opec.

Chicago Style (17th ed.) Citation

Opec. Opec Aid And Opec Aid Institutions: :A Profile. 1. Edisyon. Vienna: Opec, 1983.

MLA (9th ed.) Citation

Opec. Opec Aid And Opec Aid Institutions: :A Profile. 1. Edisyon. Opec, 1983.

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