Cita APA (7a ed.)

Oppel, A. J. (2016). SQL: A beginner's guide (Fourth edition.). McGraw-Hill Education.

Cita Chicago Style (17a ed.)

Oppel, Andrew J. SQL: A Beginner's Guide. Fourth edition. New York: McGraw-Hill Education, 2016.

Cita MLA (9a ed.)

Oppel, Andrew J. SQL: A Beginner's Guide. Fourth edition. McGraw-Hill Education, 2016.