GROFF JAMES R. (2003). SQL: COMPLETE REFERENCE WITH CD (2ND ED.). TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED.
Cita Chicago (17th ed.)GROFF JAMES R. SQL: COMPLETE REFERENCE WITH CD. 2ND ED. NEW DELHI: TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED, 2003.
Cita MLA (9th ed.)GROFF JAMES R. SQL: COMPLETE REFERENCE WITH CD. 2ND ED. TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED, 2003.
Atenció: Aquestes cites poden no estar 100% correctes.