Gaya APA

Fengler, M, R. (2005). Semiparametric Modeling of Implied Volatility (1st ed. 2005.). Berlin, Heidelberg: Springer.

Gaya MLA

Fengler, Matthias, R.. "Semiparametric Modeling of Implied Volatility". 1st ed. 2005. Berlin, Heidelberg: Springer, 2005. E Book.