Cita APA (7th ed.)

Anderson, K. &. O. (2012). Study Speaking (02nd.). Cambridge University Press.

Cita Chicago (17th ed.)

Anderson, Kenneth & Others. Study Speaking. 02nd. Cambridge: Cambridge University Press, 2012.

Cita MLA (9th ed.)

Anderson, Kenneth & Others. Study Speaking. 02nd. Cambridge University Press, 2012.