Kolesov, Vladimir Viktorovich
Leningradskogo Universiteta, 1972
Buku Referensi
Академия Наук СССР; Е.А. Гольдич; Н.А. Кругликова; Г.М. Гельфер, И.С. Дементьева
Nauka, 1965
Buku Teks
Zvegintsev, Vladimir Andreyevich
Ministerstva Prosveshheniya RSFSR, 1960
Buku Teks
Stepanov, Yuriy Sergeyevich
Prosveshhenie, 1975
Buku Teks
Korolenko, Vladimir Galaktionovich
Khudozhestvennaya Literatura, 1965
Buku Teks