Cita APA (7th ed.)
Singh,S.K. (2013). Database system: Concepts,Design and Application (2nd ed.). Pearson.
Cita Chicago (17th ed.)
Singh,S.K. Database System: Concepts,Design and Application. 2nd ed. Delhi: Pearson, 2013.
Cita MLA (9th ed.)
Singh,S.K. Database System: Concepts,Design and Application. 2nd ed. Pearson, 2013.
Atenció: Aquestes cites poden no estar 100% correctes.