Cita APA (7a ed.)

Freire, R. a. J. (2011). Q: Skills for success. listening and speaking. 4 with online practice. Oxford University Press.

Cita Chicago Style (17a ed.)

Freire, Robert and Jones. Q: Skills for Success. Listening and Speaking. 4 with Online Practice. New York: Oxford University Press, 2011.

Cita MLA (9a ed.)

Freire, Robert and Jones. Q: Skills for Success. Listening and Speaking. 4 with Online Practice. Oxford University Press, 2011.