Gaya APA

J.Angel, J. et al (1999). Equity FLEX OPtions: The Financial Engineer's Most Versatile Tool . Pennsylvania: FrankJ. Fabozzi.

Gaya MLA

J.Angel, James. et al. "Equity FLEX OPtions: The Financial Engineer's Most Versatile Tool". Pennsylvania: FrankJ. Fabozzi, 1999. Text.