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library classification
図書分類法
Attribute-value system
Categorization
Classification (general theory)
Decimal classification
Document classification
Information retrieval
Knowledge organization
Library management
Library of Congress Subject Headings
W. C. Berwick Sayers
Subject indexing
googlelibrary classification
image library classification
define library classification
wikipedia library classification
weblio library classification
kotobank library classification
jisho library classification