APA (7th ed.) Citation

(1982). OPEC: 20 years and beyond. Westview Pr. u.a.

Chicago Style (17th ed.) Citation

OPEC: 20 Years and Beyond. Boulder, Colo. u.a: Westview Pr. u.a, 1982.

MLA (9th ed.) Citation

OPEC: 20 Years and Beyond. Westview Pr. u.a, 1982.

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