APA aipamena

Clubley, S. (1998). Trading in Oil Futures and Options (Second Edition). ELSEVIER.

Chicago Style aipamena

Clubley, Sally. Trading in Oil Futures and Options (Second Edition). ELSEVIER, 1998.

MLA aipamena

Clubley, Sally. Trading in Oil Futures and Options (Second Edition). ELSEVIER, 1998.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.