Cita APA

Tweddle,Sally, Adams,Anthony, & Clarke, S. (1997). English for tomorrow. Open University Press.

Citación estilo Chicago

Tweddle,Sally, Adams,Anthony, y Stephen Clarke. English for Tomorrow. Open University Press, 1997.

Cita MLA

Tweddle,Sally, Adams,Anthony, y Stephen Clarke. English for Tomorrow. Open University Press, 1997.

Precaución: Estas citas no son 100% exactas.