Clubley, S. (1998). Trading in Oil Futures and Options (Second Edition). ELSEVIER.
Lua i Stíl Chicago (17ú heag.)Clubley, Sally. Trading in Oil Futures and Options (Second Edition). ELSEVIER, 1998.
Lua MLA (8ú heag.)Clubley, Sally. Trading in Oil Futures and Options (Second Edition). ELSEVIER, 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.