Cita APA (7a ed.)

Tiberio, S. C. (2008). What's up?: Starter : student's book + workbook.

Cita Chicago Style (17a ed.)

Tiberio, Silvia Carolina. What's Up?: Starter : Student's Book + Workbook. Buenos Aires, 2008.

Cita MLA (9a ed.)

Tiberio, Silvia Carolina. What's Up?: Starter : Student's Book + Workbook. 2008.