500 Science
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- Subjects (64802)
- 500 Science (13662)
- 500 Science (844)
- 510 Mathematics (2027)
- 520 Astronomy (5)
- 530 Physics (3179)
- 540 Chemistry (2943)
- 570 Life sciences; biology (2911)
- 580 Plants (botany) (35)
- 590 Animals (zoology) (509)
- 500 Science (13662)
Number of items at this level: 0.