APA (7 वां संस्करण) प्रशस्ति पत्र
Bickel, B. (2013). Language typology and historical contingency: In honor of Johanna Nichols. John Benjamins Publishing Company.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Bickel, Balthasar. Language Typology and Historical Contingency: In Honor of Johanna Nichols. Amsterdam ; Philadelphia: John Benjamins Publishing Company, 2013.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Bickel, Balthasar. Language Typology and Historical Contingency: In Honor of Johanna Nichols. John Benjamins Publishing Company, 2013.
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