Richards, J., & Long, M. (1988). Breakthrough: A Course in English Communication Practice. London: Oxford University Press.
Trích dẫn kiểu ChicagoRichards, J.C., và M.n Long. Breakthrough: A Course in English Communication Practice. London: Oxford University Press, 1988.
MLA CitationRichards, J.C., và M.n Long. Breakthrough: A Course in English Communication Practice. London: Oxford University Press, 1988.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.