Παραπομπή APA

Richards, J. C., & Long, M. N. (1988). Breakthrough: A course in English comunication practice. Kuala Lumpur: Oxford University Press.

Παραπομπή Chicago Style

Richards, J. C., και M. N. Long. Breakthrough: A Course in English Comunication Practice. Kuala Lumpur: Oxford University Press, 1988.

Παραπομπή MLA

Richards, J. C., και M. N. Long. Breakthrough: A Course in English Comunication Practice. Kuala Lumpur: Oxford University Press, 1988.

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