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