Fox, V. (2010). Marketing in the age of Google: A non-technical guide to search engine strategy. John Wiley & Sons.
Lua i Stíl Chicago (17ú heag.)Fox, Vanessa. Marketing in the Age of Google: A Non-technical Guide to Search Engine Strategy. Hoboken, N.J.: John Wiley & Sons, 2010.
Lua MLA (8ú heag.)Fox, Vanessa. Marketing in the Age of Google: A Non-technical Guide to Search Engine Strategy. John Wiley & Sons, 2010.
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