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Campus
IUB
删除限定条件 Campus: IUB
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Work
删除限定条件 类型: Work
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Topical Subject: Maps
删除限定条件 学科: Topical Subject: Maps
State/Province
Витебская область (Vitebsk oblast) and Белорусская ССР (Byelorussian Soviet Socialist Republic)
删除限定条件 State/Province: Витебская область (Vitebsk oblast) and Белорусская ССР (Byelorussian Soviet Socialist Republic)