Columbia subject headings:
Harvard subject headings:
Volzhskaia gidroelectrostantsiia imeni XXII sʺezda KPSS.
Volzhskai͡a gidroėlektricheskai͡a stant͡sii͡a
Princeton subject headings:
Volzhskai︠a︡ gidroėlektrostant︠s︡ii︠a︡.