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Subclass B
| B1-5802 | Philosophy (General) | |||
| B69-99 | General works | |||
| B108-5802 | By period Including individual philosophers and schools of philosophy | |||
| B108-708 | Ancient | |||
| B720-765 | Medieval | |||
| B770-785 | Renaissance | |||
| B790-5802 | Modern | |||
| B808-849 | Special topics and schools of philosophy | |||
| B850-5739 | By region or country | |||
| B5800-5802 | By religion | |||
