Cunningham, G. (2012). Face2Face: Elementary Student's Book (Segunda edición.). Cambridge University Press.
Cita Chicago (17th ed.)Cunningham, Gillie. Face2Face: Elementary Student's Book. Segunda edición. United Kingdom: Cambridge University Press, 2012.
Cita MLA (9th ed.)Cunningham, Gillie. Face2Face: Elementary Student's Book. Segunda edición. Cambridge University Press, 2012.
Atenció: Aquestes cites poden no estar 100% correctes.