SpringerLink (Online service), Kleinaltenkamp, M., Plinke, W., & Geiger, I. (2015). Business Relationship Management and Marketing: Mastering Business Markets. Springer Berlin Heidelberg : Imprint: Springer.
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), Michael Kleinaltenkamp, Wulff Plinke, και Ingmar Geiger. Business Relationship Management and Marketing: Mastering Business Markets. Berlin, Heidelberg: Springer Berlin Heidelberg : Imprint: Springer, 2015.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. Business Relationship Management and Marketing: Mastering Business Markets. Springer Berlin Heidelberg : Imprint: Springer, 2015.
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