Cita APA

Tweddle, S., Adams, A., & Clarke, S. (1997). English for tomorrow. Buckingham [England] ; Philadelphia: Open University Press.

Chicago Style Citation

Tweddle, Sally., Anthony Adams, i Stephen Clarke. English for Tomorrow. Buckingham [England] ; Philadelphia: Open University Press, 1997.

Cita MLA

Tweddle, Sally., Anthony Adams, i Stephen Clarke. English for Tomorrow. Buckingham [England] ; Philadelphia: Open University Press, 1997.