MLA

Duffy, Vincent G, Takeo Kanade, and Josef Kittler. Digital Human Modeling. Springer Berlin Heidelberg, 2009.

APA

Duffy, V. G, Kanade, T., & Kittler, J. (2009). Digital Human Modeling. Springer Berlin Heidelberg.

Chicago

Duffy, Vincent G., Takeo Kanade, and Josef Kittler. Digital Human Modeling. : Springer Berlin Heidelberg, 2009.