Spence, D. (1997). Introduction to Futures and Options. ELSEVIER.
Lua i Stíl Chicago (17ú heag.)Spence, Donald. Introduction to Futures and Options. ELSEVIER, 1997.
Lua MLA (8ú heag.)Spence, Donald. Introduction to Futures and Options. ELSEVIER, 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.