Cita APA

Alexander, L. G. (1977). Practice and progress: An integrated course for pre-intermediate students. London: Longman.

Chicago Style Citation

Alexander, L. G. Practice and Progress: An Integrated Course for Pre-intermediate Students. London: Longman, 1977.

Cita MLA

Alexander, L. G. Practice and Progress: An Integrated Course for Pre-intermediate Students. London: Longman, 1977.

Atenció: Aquestes cites poden no estar 100% correctes.