Cita APA
Swan, M. (1984). Practical English usage (3rd ed.). Oxford University Press.
Citación estilo Chicago
Swan, Michael. Practical English Usage. 3rd ed. Oxford ; New York: Oxford University Press, 1984.
Cita MLA
Swan, Michael. Practical English Usage. 3rd ed. Oxford University Press, 1984.
Warning: These citations may not always be 100% accurate.