MLA

Härdle, Wolfgang, Wolfgang Hardle, and Zdenek Hlavka. Multivariate Statistics. Springer New York, 2007.

APA

Härdle, W., Hardle, W., & Hlavka, Z. (2007). Multivariate Statistics. Springer New York.

Chicago

Härdle, Wolfgang, Wolfgang Hardle, and Zdenek Hlavka. Multivariate Statistics. : Springer New York, 2007.