Kumar, S. (2010). Marketing management. A.K. Publ.
Chicago Style aipamenaKumar, Sandeep. Marketing Management. Delhi: A.K. Publ, 2010.
MLA aipamenaKumar, Sandeep. Marketing Management. A.K. Publ, 2010.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.