SpringerLink (Online service), Raghavan, N. R. S., & Cafeo, J. A. (2009). Product Research: The Art and Science Behind Successful Product Launches. Springer Netherlands.
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), N. R. Srinivasa Raghavan, και John A. Cafeo. Product Research: The Art and Science Behind Successful Product Launches. Dordrecht: Springer Netherlands, 2009.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. Product Research: The Art and Science Behind Successful Product Launches. Springer Netherlands, 2009.
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