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Books about Koszutska:
Maria Koszutska by Janina Kasprzakowa (1988)
Wiki information Koszutska:
Maria Koszutska was a leader and theoretician of the Polish Socialist Party "Left" faction and later of the Communist Party of Poland. She joined the PPS in 1902 and was a member of the executive of the splinter PPS-Left, and the KPP from 1918. With...
Olga Koszutska was the wife of Zygmunt Listkiewicz and the mother of Michał Listkiewicz.