Spinney, L. (2025). Proto: How one ancient language went global. Bloomsbury Publishing.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSpinney, Laura. Proto: How One Ancient Language Went Global. New York: Bloomsbury Publishing, 2025.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSpinney, Laura. Proto: How One Ancient Language Went Global. Bloomsbury Publishing, 2025.
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