Iacobucci, D., & Churchill, G. (2015). Marketing research: Methodological foundation (11th ed.). Earlie Lite Books, Inc.
Lua i Stíl Chicago (17ú heag.)Iacobucci, Dawn, agus Gilbert Churchill. Marketing Research: Methodological Foundation. 11th ed. Nashville, TN: Earlie Lite Books, Inc, 2015.
Lua MLA (9ú heag.)Iacobucci, Dawn, agus Gilbert Churchill. Marketing Research: Methodological Foundation. 11th ed. Earlie Lite Books, Inc, 2015.
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