Occardi, V. (1993). Relational databases: Theory and practice. DPD.
Cita Chicago (17th ed.)Occardi, Val. Relational Databases: Theory and Practice. New Delhi: DPD, 1993.
Cita MLA (9th ed.)Occardi, Val. Relational Databases: Theory and Practice. DPD, 1993.
Atenció: Aquestes cites poden no estar 100% correctes.