Cita APA

Alexander, L. G. (1973). Practice and progress: An integrated course for pre-intermediate students. London: Longman.

Citación estilo Chicago

Alexander, L. G. Practice and Progress: An Integrated Course for Pre-intermediate Students. London: Longman, 1973.

Cita MLA

Alexander, L. G. Practice and Progress: An Integrated Course for Pre-intermediate Students. London: Longman, 1973.

Precaución: Estas citas no son 100% exactas.