Classification
000 - Computer science, information & general works
330 - Economics
580 - Plants (Botany)
333 - Economics of land & energy
8
363 - Other social problems & services
7
600 - Technology
7
700 - The arts; fine & decorative arts
6
630 - Agriculture & related technologies
5
551 - Geology, hydrology & meteorology
3
620 - Engineering & allied operations
3
658 - General management
3
610 - Medicine & health
2
100 - Philosophy & psychology
1
320 - Political science
1
336 - Public finance
1
340 - Law
1
370 - Education
1
380 - Commerce, communications & transportation
1
581 - Specific topics in natural history
1
612 - Human physiology
1
657 - Accounting
1
900 - History & geography
1