Vee, J., Miller, T., & Bauer, J. (2008). Gravitational marketing: The science of attracting customers. John Wiley & Sons.
Lua i Stíl Chicago (17ú heag.)Vee, Jimmy, Travis Miller, agus Joel Bauer. Gravitational Marketing: The Science of Attracting Customers. Hoboken, N.J.: John Wiley & Sons, 2008.
Lua MLA (8ú heag.)Vee, Jimmy, et al. Gravitational Marketing: The Science of Attracting Customers. John Wiley & Sons, 2008.
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