Wiersema, F. D. (1982). Strategic marketing and the product life cycle. Marketing Science Institute.
Chicago-viite (17. p.)Wiersema, Frederik D. Strategic Marketing and the Product Life Cycle. Cambridge, Mass. (14 Story St., Cambridge 02138): Marketing Science Institute, 1982.
MLA-viite (8. p.)Wiersema, Frederik D. Strategic Marketing and the Product Life Cycle. Marketing Science Institute, 1982.
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