Cita APA (7th ed.)
Harper, S. (2009). Oracle SQL Developer 2.1. Packt Pub..
Cita Chicago (17th ed.)
Harper, Sue. Oracle SQL Developer 2.1. Birmingham, UK: Packt Pub., 2009.
Cita MLA (9th ed.)
Harper, Sue. Oracle SQL Developer 2.1. Packt Pub., 2009.
Atenció: Aquestes cites poden no estar 100% correctes.