DDC 22
Terms
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- 000
- Computer science, information & general works
- 100
- Philosophy & psychology
- 200
- Religion
- 300
- Social sciences
- 400
- Language
- 500
- Science
- 600
- Technology
- 700
- Arts & recreation
- 800
- Literature
- 900
- History & geography
- 510
- Mathematics
- 520
- Astronomy
- 530
- Physics
- 540
- Chemistry
- 550
- Earth sciences & geology
- 560
- Fossils & prehistoric life
- 570
- Life sciences; biology
- 580
- Plants (Botany)
- 590
- Animals (Zoology)