.Lorents, A. C., .Morgan, J. N., & .Lorents, A. C. (1998). Database systems: Concepts, management, and applications. Dryden Press.
Dyfyniad Arddull Chicago.Lorents, Alden C., James N. .Morgan, and Alden C. .Lorents. Database Systems: Concepts, Management, and Applications. Fort Worth: Dryden Press, 1998.
Dyfyniad MLA.Lorents, Alden C., et al. Database Systems: Concepts, Management, and Applications. Dryden Press, 1998.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.