APA-referens

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

Chicago-stil citat

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

MLA-referens

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

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.