Burns, A. C., & Bush, R. F. (2010). Marketing research (6th ed.). Pearsonl.
Cita Chicago (17th ed.)Burns, Alvin C., i Ronald F. Bush. Marketing Research. 6th ed. Boston: Pearsonl, 2010.
Cita MLA (9th ed.)Burns, Alvin C., i Ronald F. Bush. Marketing Research. 6th ed. Pearsonl, 2010.
Atenció: Aquestes cites poden no estar 100% correctes.