APA Style
Wardhaugh, Ronald. ().
An Introduction to Sociolinguistics: Fifth edition .
Britania Raya:
Blackwell.
Chicago Style
Wardhaugh, Ronald.
An Introduction to Sociolinguistics: Fifth edition.
Britania Raya:
Blackwell,
.
Text.
MLA Style
Wardhaugh, Ronald.
An Introduction to Sociolinguistics: Fifth edition.
Britania Raya:
Blackwell,
.
Text.
Turabian Style
Wardhaugh, Ronald.
An Introduction to Sociolinguistics: Fifth edition.
Britania Raya:
Blackwell,
.
Print.