Cita APA (7th ed.)

AAKer, D. A. (2002). Marketing research (7thed.). Wiley.

Cita Chicago (17th ed.)

AAKer, David A. Marketing Research. 7thed. Singapore: Wiley, 2002.

Cita MLA (9th ed.)

AAKer, David A. Marketing Research. 7thed. Wiley, 2002.