Cita APA

Boyd, E., & Boyd, E. (2008). ESOL activities: Entry 2. Cambridge: Cambridge University Press.

Citación estilo Chicago

Boyd, Elaine, y Elaine Boyd. ESOL Activities: Entry 2. Cambridge: Cambridge University Press, 2008.

Cita MLA

Boyd, Elaine, y Elaine Boyd. ESOL Activities: Entry 2. Cambridge: Cambridge University Press, 2008.