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To describe the important work by people connected with PWN [Polish Scientific Publishers] and the role of PWN in the formation of the first professional editorial team for drafting encyclopaedias after World War II. To present facts and events accompanying the drafting of the thirteen-volume 'Wielka Encyklopedia Powszechna PWN' (PWN Great Universal Encyclopaedia) and the 'Encyklopedia Warszawy' (Encyclopaedia...
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