Tregub, Semen Adolʹfovich. The heroic life of Nikolai Ostrovsky : how the steel was tempered / S. Tregub ; translated from the Russian by Helen Altschuler; designed by Y. Rakuzin. - Moscow : Foreign Languages Pub. House, [1964?]. - 144 p. : ill. ; 21 cm. Subjects--Personal Names: Ostrovsky, Nikolai