Cita APA (7a ed.)

Trudgill, P. (2002). Sociolinguistic variation and change. University Press.

Cita Chicago Style (17a ed.)

Trudgill, Peter. Sociolinguistic Variation and Change. Edinburgh: University Press, 2002.

Cita MLA (9a ed.)

Trudgill, Peter. Sociolinguistic Variation and Change. University Press, 2002.