Columbia subject headings:
Harvard subject headings:
Electric power-plants--Soviet Union.
Electrification--Soviet Union.
Vsesoi︠u︡znyĭ leninskiĭ kommunisticheskiĭ soi︠u︡z molodezhi.
Working class--Soviet Union
Princeton subject headings:
Vsesoi︠u︡znyĭ leninskiĭ kommunisticheskiĭ soi︠u︡z molodezhi.
Youth--Soviet Union.