TransliterationPreobrazhenskij A.G. Jetimologicheskij slovar russkogo yazyka: V 2-h t. — T. I: A–O. — T. II: P–Ya. In Russian
In EnglishTransfiguration A.Mr.. Jetimologicheskij dictionary Russian language: in 2-x t. — T. I: A–About. — T. II: P–I. In Russian, n/a
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