Bales, D. J. (2007). Beginning PL/SQL: From novice to professional. Apress.
Chicago Style (17th ed.) ZitazioaBales, Donald J. Beginning PL/SQL: From Novice to Professional. New Delhi: Apress, 2007.
MLA (9th ed.) ZitazioaBales, Donald J. Beginning PL/SQL: From Novice to Professional. Apress, 2007.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.