Classification
340 - Law
380 - Commerce, communications & transportation
363 - Other social problems & services
4
610 - Medicine & health
4
700 - The arts; fine & decorative arts
4
000 - Computer science, information & general works
3
580 - Plants (Botany)
3
600 - Technology
3
140 - Specific philosophical schools
2
330 - Economics
2
333 - Economics of land & energy
2
400 - Language
2
620 - Engineering & allied operations
2
370 - Education
1
500 - Natural sciences & mathematics
1
530 - Physics
1
540 - Chemistry & allied sciences
1
551 - Geology, hydrology & meteorology
1
576 - Genetics & evolution
1
630 - Agriculture & related technologies
1
900 - History & geography
1