APA-viite (7. p.)
Gross, T. S. (2005). When customers talk: --turn what they tell you into sales. Dearborn Trade Pub..
Chicago-viite (17. p.)
Gross, T. Scott. When Customers Talk: --turn What They Tell You into Sales. Chicago, IL: Dearborn Trade Pub., 2005.
MLA-viite (9. p.)
Gross, T. Scott. When Customers Talk: --turn What They Tell You into Sales. Dearborn Trade Pub., 2005.
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