Richards, J. C., & Long, M. N. (1988). Breakthrough: A course in English comunication practice. Kuala Lumpur: Oxford University Press.
استشهاد بنمط شيكاغوRichards, J. C., و M. N. Long. Breakthrough: A Course in English Comunication Practice. Kuala Lumpur: Oxford University Press, 1988.
MLA استشهادRichards, J. C., و M. N. Long. Breakthrough: A Course in English Comunication Practice. Kuala Lumpur: Oxford University Press, 1988.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.