Lua APA (7ú heag.)
Pfenninger, S. E. (2014). Contact, variation, and change in the history of English. John Benjamins Publishing Company.
Lua i Stíl Chicago (17ú heag.)
Pfenninger, Simone E. Contact, Variation, and Change in the History of English. Amsterdam, Netherlands: John Benjamins Publishing Company, 2014.
Lua MLA (9ú heag.)
Pfenninger, Simone E. Contact, Variation, and Change in the History of English. John Benjamins Publishing Company, 2014.
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