Kumar, V. (2000). International marketing research. Prentice Hall \ Pvt. Ltd..
Cita Chicago (17th ed.)Kumar, V. International Marketing Research. Upper Saddle River, N.J. ; New Delhi: Prentice Hall \ Pvt. Ltd., 2000.
Cita MLA (8th ed.)Kumar, V. International Marketing Research. Prentice Hall \ Pvt. Ltd., 2000.
Atenció: Aquestes cites poden no estar 100% correctes.