Kurtz, D. L. (2010). Principles of Contemporary marketing (14th ed.). Mason, OH : South-Western Cengage Learning.
Lua i Stíl Chicago (17ú heag.)Kurtz, David L. Principles of Contemporary Marketing. 14th ed. Australia: Mason, OH : South-Western Cengage Learning, 2010.
Lua MLA (8ú heag.)Kurtz, David L. Principles of Contemporary Marketing. 14th ed. Mason, OH : South-Western Cengage Learning, 2010.
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