Cita APA (7th ed.)

Gower R. Roger. (2008). Real Writing 3 with answers. New York, Cambridge University Press, 2008.

Cita Chicago (17th ed.)

Gower R. Roger. Real Writing 3 with Answers. New York, Cambridge University Press, 2008, 2008.

Cita MLA (9th ed.)

Gower R. Roger. Real Writing 3 with Answers. New York, Cambridge University Press, 2008, 2008.