Cita APA (7th ed.)

Leon, A. (2009). SQL: A Complete Reference. 2009 ( With Floppy). TMH.

Cita Chicago (17th ed.)

Leon, Alexis. SQL: A Complete Reference. 2009 ( With Floppy). New Delhi: TMH, 2009.

Cita MLA (9th ed.)

Leon, Alexis. SQL: A Complete Reference. 2009 ( With Floppy). TMH, 2009.