Cita APA

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

Citación estilo Chicago

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

Cita MLA

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