HOLTZ, H. (1992). Databased Marketing. John Wiley.
Chicago Style aipamenaHOLTZ, Herman. Databased Marketing. John Wiley, 1992.
MLA aipamenaHOLTZ, Herman. Databased Marketing. John Wiley, 1992.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.