Cita APA (7th ed.)

Harrington, J. L. (2010). SQL clearly explained (3rd ed.). Morgan Kaufmann/Elsevier.

Cita Chicago (17th ed.)

Harrington, Jan L. SQL Clearly Explained. 3rd ed. Burlington, Mass: Morgan Kaufmann/Elsevier, 2010.

Cita MLA (9th ed.)

Harrington, Jan L. SQL Clearly Explained. 3rd ed. Morgan Kaufmann/Elsevier, 2010.