Institut istorii SSSR (Akademi︠i︡a nauk SSSR). Leningradskoe otdelenie, Rutenburg, V. I., Medvedev, I. P., & Thomas, A. (1990). Politicheskie struktury ėpokhi feodalizma v Zapadnoĭ Evrope: VI-XVII vv. "Nauka," Leningradskoe otd-nie.
Lua i Stíl Chicago (17ú heag.)Institut istorii SSSR (Akademi︠i︡a nauk SSSR). Leningradskoe otdelenie, V. I. Rutenburg, I. P. Medvedev, agus Aquinas Thomas. Politicheskie Struktury ėpokhi Feodalizma V Zapadnoĭ Evrope: VI-XVII Vv. Leningrad: "Nauka," Leningradskoe otd-nie, 1990.
Lua MLA (8ú heag.)Institut istorii SSSR (Akademi︠i︡a nauk SSSR). Leningradskoe otdelenie, et al. Politicheskie Struktury ėpokhi Feodalizma V Zapadnoĭ Evrope: VI-XVII Vv. "Nauka," Leningradskoe otd-nie, 1990.
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