Fattouh, B., & Mahadeva, L. (2013). OPEC – What Difference has it Made? Oxford Institute for Energy Studies.
Lua i Stíl Chicago (17ú heag.)Fattouh, B., agus L. Mahadeva. OPEC – What Difference Has It Made? Oxford Institute for Energy Studies, 2013.
Lua MLA (9ú heag.)Fattouh, B., agus L. Mahadeva. OPEC – What Difference Has It Made? Oxford Institute for Energy Studies, 2013.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.