Cita APA (7th ed.)
Donahoo, M. J., & Speegle, G. D. (2005). SQL: Practical guide for developers. Elsevier.
Cita Chicago (17th ed.)
Donahoo, Michael J., i Gregory D. Speegle. SQL: Practical Guide for Developers. Boston: Elsevier, 2005.
Cita MLA (9th ed.)
Donahoo, Michael J., i Gregory D. Speegle. SQL: Practical Guide for Developers. Elsevier, 2005.
Atenció: Aquestes cites poden no estar 100% correctes.