The Encyclopedia Herald of Ukraine
Nataliia Chernysh . (2015). "Ukrainian Soviet Encyclopedia (1930-1934) and its editor M. Skrypnyk: little-known pages of the publishing history". The Encyclopedia Herald of Ukraine. Retrieved 2020-06-07 from http://evu.encyclopedia.kiev.ua/en/vol-6-7/ukrainian-soviet-encyclopedia-1930-1934-and-its-editor-m-skrypnyk-little-known-pages-of-the-publishing-history/.
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