Ėkonomicheskai︠a︡ ėffektivnostʹ pri sot︠s︡ializme
by G. M. Sorokin, Kira Borisovna Leĭkina
Industrial productivity
Writing a summary for young readers…
For young readers
Book data: Open Library
by G. M. Sorokin, Kira Borisovna Leĭkina
Book data: Open Library