Russia) Vsesoi︠u︡znai︠a︡ nauchnai︠a︡ konferent︠s︡ii︠a︡ po problemam knigovedenii︠a︡ (1st 1969 Moscow

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• Materialy Pervoĭ Vsesoi︠u︡znoĭ nauchnoĭ konferent︠s︡in po problemam knigovedenii︠a︡