الأصناف الرئيسية
2X
الأقسام
الفروع
- 400Language7
- 401Philosophy & theory3
- 402Miscellany
- 403Dictionaries & encyclopedias1
- 404Special topics
- 405Serial publications1
- 406Organizations & management
- 407Education, research & related topics
- 408Kinds of persons treatment
- 409Geographic & persons treatment