Narodnokhozi︠a︡ĭstvennai︠a︡ ot︠s︡enka tekhnicheskogo progressa v otrasli (na primere chernoĭ metallurgii
Economic aspectsEconomic aspects of TechnologyInterindustry economicsIron industry and tradeSteel industry and tradeTechnology
Writing a summary for young readers…
For young readers
Book data: Open Library