APA-referens (7:e uppl.)

Kriegel, A. (2011). Discovering SQL: A hands-on guide for beginners. Wiley.

Chicago-referens (17:e uppl.)

Kriegel, Alex. Discovering SQL: A Hands-on Guide for Beginners. Indianapolis, Ind.: Wiley, 2011.

MLA-referens (9:e uppl.)

Kriegel, Alex. Discovering SQL: A Hands-on Guide for Beginners. Wiley, 2011.