Kohlbacher, F., & Herstatt, C. (2011). The Silver Market Phenomenon: Marketing and Innovation in the Aging Society. Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-642-14338-0
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Chicago-čujuhus (17. p.)
Kohlbacher, Florian, juo Cornelius Herstatt. The Silver Market Phenomenon: Marketing and Innovation in the Aging Society. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. https://doi.org/10.1007/978-3-642-14338-0.
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MLA-čujuhus (9. p.)
Kohlbacher, Florian, juo Cornelius Herstatt. The Silver Market Phenomenon: Marketing and Innovation in the Aging Society. Springer Berlin Heidelberg, 2011. https://doi.org/10.1007/978-3-642-14338-0.
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