MLA

Hesselbach, Jürgen, and Christoph Herrmann. Functional Thinking for Value Creation. Springer Berlin Heidelberg, 2011.

APA

Hesselbach, J., & Herrmann, C. (2011). Functional Thinking for Value Creation. Springer Berlin Heidelberg.

Chicago

Hesselbach, Jürgen, Christoph Herrmann, and Jürgen Hesselbach. Functional Thinking for Value Creation. : Springer Berlin Heidelberg, 2011.