Greene, J. B., & Greene, J. B. (1997). Oracle DBA: Survival guide. Techmedia.
Chicago Style aipamenaGreene, Joseph B., and Joseph B. Greene. Oracle DBA: Survival Guide. New Delhi: Techmedia, 1997.
MLA aipamenaGreene, Joseph B., and Joseph B. Greene. Oracle DBA: Survival Guide. Techmedia, 1997.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.