Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (8th ed.)

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