MLA

Lüdicke, Marius K, Marius Lüdicke, and Prof. Markus Giesler. A Theory of Marketing. DUV, 2006.

APA

Lüdicke, M. K, Lüdicke, M., & Giesler, P. Markus. (2006). A Theory of Marketing. DUV.

Chicago

Lüdicke, Marius K., Marius Lüdicke, Marius K Lüdicke, and Prof. Markus Giesler. A Theory of Marketing. : DUV, 2006.