Cita APA

Sheldon, R. (2003). SQL: A beginner's guide. New York: McGraw-Hill.

Citación estilo Chicago

Sheldon, Robert. SQL: A Beginner's Guide. New York: McGraw-Hill, 2003.

Cita MLA

Sheldon, Robert. SQL: A Beginner's Guide. New York: McGraw-Hill, 2003.