Stupeni masterstva
CatalogsT︠S︡entralʹnyĭ muzeĭ drevnerusskoĭ kulʹtury i iskusstva imeni Andrei︠a︡ RublevaConservation and restorationRossiĭskai︠a︡ akademii︠a︡ zhivopisi, vai︠a︡nii︠a︡ i zodchestvaIcons
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For young readers
Book data: Open Library