Stephens, M. (1997). Practise advanced writing. Longman.
Cita Chicago Style (17a ed.)Stephens, Mary. Practise Advanced Writing. England: Longman, 1997.
Cita MLA (9a ed.)Stephens, Mary. Practise Advanced Writing. Longman, 1997.
Precaución: Estas citas no son 100% exactas.