岡山県埋蔵文化財発掘調査報告１７０－比丘尼ヶ城跡 岡山県埋蔵文化財発掘調査報告１７０－比丘尼ヶ城跡オカヤマケンマイゾウブンカザイハックツチョウサホウコク１７０－ビクニガジョウアト

National Diet Library

The National Diet Library (NDL), founded in 1948, is the library which belongs to the Diet. The NDL assists the activities of the National Diet. The Library collects and conserves materials and information both from Japan and abroad, serving as a foundation of knowledge and culture and providing library services to administrative and judicial entities and Japanese citizens.