Gaya APA
Wardhaugh, Ronald. (2015).
AN INTRODUCTION TO SOCIOLINGUISTICS (7th).
Singapore:
WILEY BLACKWELL.
Gaya Chicago
Wardhaugh, Ronald.
AN INTRODUCTION TO SOCIOLINGUISTICS.
7th
Singapore:
WILEY BLACKWELL,
2015.
Text.
Gaya MLA
Wardhaugh, Ronald.
AN INTRODUCTION TO SOCIOLINGUISTICS.
7th
Singapore:
WILEY BLACKWELL,
2015.
Text.
Gaya Turabian
Wardhaugh, Ronald.
AN INTRODUCTION TO SOCIOLINGUISTICS.
7th
Singapore:
WILEY BLACKWELL,
2015.
Print.