Cita APA (7th ed.)

Keesling,Donna. (2000). Develop PL/SQL program units: Student guide. Oracle Corporation.

Cita Chicago (17th ed.)

Keesling,Donna. Develop PL/SQL Program Units: Student Guide. Redwood Shores, CA: Oracle Corporation, 2000.

Cita MLA (9th ed.)

Keesling,Donna. Develop PL/SQL Program Units: Student Guide. Oracle Corporation, 2000.

Atenció: Aquestes cites poden no estar 100% correctes.