Cita APA

Spolsky, B., & Widdowson, H. G. (1998). Sociolinguistics. Oxford: Oxford University Press.

Citación estilo Chicago

Spolsky, Bernard, and H. G. Widdowson. Sociolinguistics. Oxford: Oxford University Press, 1998.

Cita MLA

Spolsky, Bernard, and H. G. Widdowson. Sociolinguistics. Oxford: Oxford University Press, 1998.