Cita APA (7a ed.)

Beaulieu, A. (2009). Learning SQL (2nd ed.). O'Reilly Media.

Cita Chicago Style (17a ed.)

Beaulieu, Alan. Learning SQL. 2nd ed. Sebastopol, Calif.: O'Reilly Media, 2009.

Cita MLA (8a ed.)

Beaulieu, Alan. Learning SQL. 2nd ed. O'Reilly Media, 2009.