Churchill, G. A., & Iacobucci, D. (2010). Marketing research: Methodological foundations (10th Ed.). South-Western/Cengage Learning.
Lua i Stíl Chicago (17ú heag.)Churchill, Gilbert A., agus Dawn Iacobucci. Marketing Research: Methodological Foundations. 10th Ed. Australia ; Mason, OH: South-Western/Cengage Learning, 2010.
Lua MLA (8ú heag.)Churchill, Gilbert A., agus Dawn Iacobucci. Marketing Research: Methodological Foundations. 10th Ed. South-Western/Cengage Learning, 2010.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.