MLA

Busch, Rainer, Margarete Seidenspinner, and Fritz Unger. Marketing Communication Policies. Springer Berlin Heidelberg, 2007.

APA

Busch, R., Seidenspinner, M., & Unger, F. (2007). Marketing Communication Policies. Springer Berlin Heidelberg.

Chicago

Busch, Rainer, Margarete Seidenspinner, and Fritz Unger. Marketing Communication Policies. : Springer Berlin Heidelberg, 2007.