Cita APA (7a ed.)

Beighley, L. (2007). Head first SQL. O'Reilly Media.

Cita Chicago Style (17a ed.)

Beighley, Lynn. Head First SQL. Beijing ; Sebastopol, CA: O'Reilly Media, 2007.

Cita MLA (8a ed.)

Beighley, Lynn. Head First SQL. O'Reilly Media, 2007.