Brooks, W. T., & Brooks, W. P. G. (2009). Playing bigger than you are: How to sell big accounts even if you're David in a world of Goliaths. John Wiley & Sons.
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Chicago Style (17th ed.) Zitazioa
Brooks, William T., eta William P. G. Brooks. Playing Bigger than You Are: How to Sell Big Accounts even if You're David in a World of Goliaths. Hoboken, N.J.: John Wiley & Sons, 2009.
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MLA (9th ed.) Zitazioa
Brooks, William T., eta William P. G. Brooks. Playing Bigger than You Are: How to Sell Big Accounts even if You're David in a World of Goliaths. John Wiley & Sons, 2009.
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