Gaya APA
Sociolinguistic variation: theories, method and application. (sa).
Cambridge:
Cambridge University Press.
Gaya Chicago
Sociolinguistic variation: theories, method and application.
.
Cambridge:
Cambridge University Press,
sa.
CD Buku.
Gaya MLA
Sociolinguistic variation: theories, method and application.
.
Cambridge:
Cambridge University Press,
sa.
CD Buku.
Gaya Turabian
Sociolinguistic variation: theories, method and application.
Cambridge:
Cambridge University Press,
sa.
CD Buku.