Nippon Decimal Classification

library classification system developed for mainly Japanese language books

en-GB/nɪpən ˈdɛsɪməl ˌklæsɪfɪˈkeɪʃən/
en-US/ˌnɪˈpɑn ˈdɛsəməl ˌklæsəfəˈkeɪʃən/

カテゴリ：

decimal classificationlibrary classification scheme