APA (7th ed.) Citation

Dumas, B., Fleming, J., & Whaley, R. E. (1996). Implied volatility functions: Empirical tests.

Chicago Style (17th ed.) Citation

Dumas, Bernard, Jeff Fleming, and Robert E. Whaley. Implied Volatility Functions: Empirical Tests. Cambridge, Mass, 1996.

MLA (9th ed.) Citation

Dumas, Bernard, et al. Implied Volatility Functions: Empirical Tests. 1996.