Cita APA (7th ed.)

Wilton, P., & Colby, J. W. (2005). Beginning SQL. Wiley Pub.

Cita Chicago (17th ed.)

Wilton, Paul, i John W. Colby. Beginning SQL. Indianapolis, IN: Wiley Pub, 2005.

Cita MLA (8th ed.)

Wilton, Paul, i John W. Colby. Beginning SQL. Wiley Pub, 2005.