Kumar, K. (2001). International marketing research management. Book enclave.
Chicago Style aipamenaKumar, Kaushal. International Marketing Research Management. Jaipur: Book enclave, 2001.
MLA aipamenaKumar, Kaushal. International Marketing Research Management. Book enclave, 2001.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.