Cita APA (7th ed.)
Ward, P. (2008). Database management systems (2nd ed.). Cenage Learning.
Cita Chicago (17th ed.)
Ward, Patricia. Database Management Systems. 2nd ed. London: Cenage Learning, 2008.
Cita MLA (9th ed.)
Ward, Patricia. Database Management Systems. 2nd ed. Cenage Learning, 2008.
Atenció: Aquestes cites poden no estar 100% correctes.