Lawson, L. (1997). Staying ahead video activity book. Cambridge University Press.
Cita Chicago Style (17a ed.)Lawson, Lynda. Staying Ahead Video Activity Book. New York: Cambridge University Press, 1997.
Cita MLA (9a ed.)Lawson, Lynda. Staying Ahead Video Activity Book. Cambridge University Press, 1997.
Precaución: Estas citas no son 100% exactas.