Cita APA

Swan, M. (1995). Practical English usage (2nd ed.). Oxford: Oxford University Press.

Chicago Style Citation

Swan, Michael. Practical English Usage. 2nd ed. Oxford: Oxford University Press, 1995.

Cita MLA

Swan, Michael. Practical English Usage. 2nd ed. Oxford: Oxford University Press, 1995.

Atenció: Aquestes cites poden no estar 100% correctes.