Cita APA

Hornby, A., & Mackin, R. (1968). Oxford progressive English alternate course. 4V.

Chicago Edition Citation

Hornby, As, i R. Mackin. Oxford Progressive English Alternate Course. 4V. 1968.

Cita MLA

Hornby, As, i R. Mackin. Oxford Progressive English Alternate Course. 4V. 1968.

Atenció: Aquestes cites poden no estar 100% correctes.