Cita APA (7a ed.)

John Watkins, S. M. (2011). Testing It (2.). Cambridge University Press.

Cita Chicago Style (17a ed.)

John Watkins, Simon Mills. Testing It. 2. Cambridge University Press, 2011.

Cita MLA (8a ed.)

John Watkins, Simon Mills. Testing It. 2. Cambridge University Press, 2011.