Cita APA (7th ed.)

Preece, L. L. (2004). Oracle SQL and introductory PL/SQL. McGraw-Hill.

Cita Chicago (17th ed.)

Preece, Linda L. Oracle SQL and Introductory PL/SQL. Boston: McGraw-Hill, 2004.

Cita MLA (9th ed.)

Preece, Linda L. Oracle SQL and Introductory PL/SQL. McGraw-Hill, 2004.