Cita APA (7th ed.)

Spence, D. (1997). Introduction to Futures and Options. ELSEVIER.

Cita Chicago (17th ed.)

Spence, Donald. Introduction to Futures and Options. ELSEVIER, 1997.

Cita MLA (8th ed.)

Spence, Donald. Introduction to Futures and Options. ELSEVIER, 1997.