Пенни (единица измерения) (Russian Wikipedia)

Analysis of information sources in references of the Wikipedia article "Пенни (единица измерения)" in Russian language version.

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1books.google.com

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archive.org

Norman Scott Brien Gras. The Early English Customs System. — Harvard University Press, Cambridge (MA), 1918. — С. 701.

books.google.com

D. Nutt. Archaeological Review: Volume 4. — 1890. — С. 322.