Dyfyniad APA
Ward, P. (2008). Database management systems (2nd ed.). Cenage Learning.
Dyfyniad Arddull Chicago
Ward, Patricia. Database Management Systems. 2nd ed. London: Cenage Learning, 2008.
Dyfyniad MLA
Ward, Patricia. Database Management Systems. 2nd ed. Cenage Learning, 2008.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.