Carter, S. (2009). The new language of marketing 2.0: How to use angels to energize your market. Upper Saddle River, NJ : IBM Press/Pearson.
Lua i Stíl Chicago (17ú heag.)Carter, Sandy. The New Language of Marketing 2.0: How to Use Angels to Energize Your Market. Upper Saddle River, NJ : IBM Press/Pearson, 2009.
Lua MLA (9ú heag.)Carter, Sandy. The New Language of Marketing 2.0: How to Use Angels to Energize Your Market. Upper Saddle River, NJ : IBM Press/Pearson, 2009.
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