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Ru| Description |
Bulletin of the Pskov Provincial Methodological Council.1926, No. 5 / Pskov Provincial Department of Public Education.Methodological bureau.- Pskov: Pskov.lips.Dep.People's Education, 1926. -Ex.Def: No p.15-18..Electronic copy source: Pskov OUNB
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| Publisher | Псков: Псков. губ. отд. народного образования |