Bekhtereva, N. P. (1990). Per aspera--: Zhiznʹ, nauka o mozge cheloveka, zhiznʹ. "Nauka," Leningradskoe otd-nie.
Lua i Stíl Chicago (17ú heag.)Bekhtereva, N. P. Per Aspera--: Zhiznʹ, Nauka O Mozge Cheloveka, Zhiznʹ. Leningrad: "Nauka," Leningradskoe otd-nie, 1990.
Lua MLA (8ú heag.)Bekhtereva, N. P. Per Aspera--: Zhiznʹ, Nauka O Mozge Cheloveka, Zhiznʹ. "Nauka," Leningradskoe otd-nie, 1990.
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