Gaya APA
Schilling, J, K, C, -, N. (2003).
The Handbook of Language Variation and Change .
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Wiley-Blackwell.
Gaya MLA
Schilling, J., K., Chambers, -, Natalie.
"The Handbook of Language Variation and Change".
West Sussex:
Wiley-Blackwell,
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BK.