Verkholan︠t︡sev, V. (1913). Gorod Permʹ, ego proshloe i nasto︠i︡ashee: Kratkīĭ istoriko-statisticheskīĭ ocherk. Ėlektro-tip. Gubernskago zemstva.
Lua i Stíl Chicago (17ú heag.)Verkholan︠t︡sev, V. Gorod Permʹ, Ego Proshloe I Nasto︠i︡ashee: Kratkīĭ Istoriko-statisticheskīĭ Ocherk. Permʹ: Ėlektro-tip. Gubernskago zemstva, 1913.
Lua MLA (8ú heag.)Verkholan︠t︡sev, V. Gorod Permʹ, Ego Proshloe I Nasto︠i︡ashee: Kratkīĭ Istoriko-statisticheskīĭ Ocherk. Ėlektro-tip. Gubernskago zemstva, 1913.
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