TransliterationPolyus muzhestva.

Shmidt G.A., Efimov V.V., Dzerdzeevskiy B.L., Strekolnikov I.S., Lebedinskiy A.I., Mikhaylov A.A., V Rol truda v stanovlenii cheloveka. Son i snovideniya. Vozdushnyy okean. Molniya i grom. V mire zvezd. Solnechnye i lunnye zatmeniya. Proiskhozhdenie nebesnykh tel. Zemletryaseniya.Stroenie i zhizn chelovecheskogo tela/Schmidt G.A., Efimov V.V., Dzerdzeevsky B.L., Strekolnikov I.S., Lebedinsky A.I., Mikhailov A.A., In the Role of Labor in the Development of Man. Dream and Dreams. Air Ocean. Lightning and Thunderbolt. In the World of Stars. Solar and Lunar Eclipses In Russian