Title: Dvadt︠s︡atʹ pi︠a︡tyĭ sʺezd KPSS i problemy sot︠s︡ialʹnogo progressa : mezhvuz. sb. nauch. tr /
Authors: Olekh, L. G.; Ivanovskiĭ gosudarstvennyĭ universitet.
Publisher: Ivan. un-t,
Year: 1977