Burns, A. C., & Bush, R. F. (2000). Marketing research (3rd.ed.). Prentice Hall.
Lua i Stíl Chicago (17ú heag.)Burns, Alvin C., agus Ronald F. Bush. Marketing Research. 3rd.ed. Upper Saddle River: Prentice Hall, 2000.
Lua MLA (9ú heag.)Burns, Alvin C., agus Ronald F. Bush. Marketing Research. 3rd.ed. Prentice Hall, 2000.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.