Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (8th ed.)

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