Gaya APA
Wardhaugh, Ronald. (2006).
An Introduction to Sociolinguistics (5).
USA:
Blackwell Publishing.
Gaya Chicago
Wardhaugh, Ronald.
An Introduction to Sociolinguistics.
5
USA:
Blackwell Publishing,
2006.
Text.
Gaya MLA
Wardhaugh, Ronald.
An Introduction to Sociolinguistics.
5
USA:
Blackwell Publishing,
2006.
Text.
Gaya Turabian
Wardhaugh, Ronald.
An Introduction to Sociolinguistics.
5
USA:
Blackwell Publishing,
2006.
Print.