Cita APA (7a ed.)

Kriegel, A. (2011). Discovering SQL: A hands-on guide for beginners (1st edition.). Wiley.

Cita Chicago Style (17a ed.)

Kriegel, Alex. Discovering SQL: A Hands-on Guide for Beginners. 1st edition. Indianapolis, Ind.: Wiley, 2011.

Cita MLA (9a ed.)

Kriegel, Alex. Discovering SQL: A Hands-on Guide for Beginners. 1st edition. Wiley, 2011.