MLA

Krafft, Manfred; Hesse, Jürgen; Höfling, Jürgen; Peters, Kay; Rinas, Diane, et al. International Direct Marketing. Springer Berlin Heidelberg, 2007.

APA

Krafft, D., Hesse, J., Krafft, M., Höfling, J., Peters, K., & Rinas, D. (2007). International Direct Marketing. Springer Berlin Heidelberg.

Chicago

Krafft, Manfred; Hesse, Jürgen; Höfling, Jürgen; Peters, Kay; Rinas, Diane, Jürgen Hesse, Manfred Krafft, Jürgen Höfling, Kay Peters, and Diane Rinas. International Direct Marketing. : Springer Berlin Heidelberg, 2007.