Institut so︠t︡sialʹno-ėkonomicheskikh problem (Akademi︠i︡a nauk SSSR), Zhikharevich, B. S., & Litovka, O. P. (1989). Razvitie regiona: ︠t︡seli, problemy, perspektivy : na primere Severo-Zapadnogo ėkonomicheskogo raĭona. "Nauka," Leningradskoe otd-nie.
Chicago-viite (17. p.)Institut so︠t︡sialʹno-ėkonomicheskikh problem (Akademi︠i︡a nauk SSSR), B. S. Zhikharevich, ja Oleg Petrovich Litovka. Razvitie Regiona: ︠t︡seli, Problemy, Perspektivy : Na Primere Severo-Zapadnogo ėkonomicheskogo Raĭona. Leningrad: "Nauka," Leningradskoe otd-nie, 1989.
MLA-viite (8. p.)Institut so︠t︡sialʹno-ėkonomicheskikh problem (Akademi︠i︡a nauk SSSR), et al. Razvitie Regiona: ︠t︡seli, Problemy, Perspektivy : Na Primere Severo-Zapadnogo ėkonomicheskogo Raĭona. "Nauka," Leningradskoe otd-nie, 1989.