Dyfyniad APA

Jeffrey D Ullman Jennifer Widom. (2007). First course in Database systems. Pearson education.

Dyfyniad Arddull Chicago

Jeffrey D Ullman Jennifer Widom. First Course in Database Systems. Delhi: Pearson education, 2007.

Dyfyniad MLA

Jeffrey D Ullman Jennifer Widom. First Course in Database Systems. Pearson education, 2007.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.