Richards,J. C. (1977). Breakthrough: A course in english communication practice. Oxford University Press.
Style de citation Chicago (17e éd.)Richards,J. C. Breakthrough: A Course in English Communication Practice. kuala Lumpur: Oxford University Press, 1977.
Style de citation MLA (9e éd.)Richards,J. C. Breakthrough: A Course in English Communication Practice. Oxford University Press, 1977.
Attention : ces citations peuvent ne pas être correctes à 100%.