Kerin, R. A., Hartley, S. W., & Rudelius, W. (2009). Marketing (9th ed.). McGraw-Hill/IRWIN.
Lua i Stíl Chicago (17ú heag.)Kerin, Roger A., Steven William Hartley, agus William Rudelius. Marketing. 9th ed. Boston: McGraw-Hill/IRWIN, 2009.
Lua MLA (9ú heag.)Kerin, Roger A., et al. Marketing. 9th ed. McGraw-Hill/IRWIN, 2009.
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