SpringerLink (Online service), Kohlbacher, F., & Herstatt, C. (2011). The Silver Market Phenomenon: Marketing and Innovation in the Aging Society (2.). Springer Berlin Heidelberg : Imprint: Springer.
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), Florian Kohlbacher, και Cornelius Herstatt. The Silver Market Phenomenon: Marketing and Innovation in the Aging Society. 2. Berlin, Heidelberg: Springer Berlin Heidelberg : Imprint: Springer, 2011.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. The Silver Market Phenomenon: Marketing and Innovation in the Aging Society. 2. Springer Berlin Heidelberg : Imprint: Springer, 2011.
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