Cita APA (7a ed.)

Alexander, L. (1967). Practice and progress: An integrated course for pre-intermediate students. Longmans.

Cita Chicago Style (17a ed.)

Alexander, L.G. Practice and Progress: An Integrated Course for Pre-intermediate Students. London: Longmans, 1967.

Cita MLA (9a ed.)

Alexander, L.G. Practice and Progress: An Integrated Course for Pre-intermediate Students. Longmans, 1967.