Classification
363 - Other social problems & services
400 - Language
620 - Engineering & allied operations
600 - Technology
14
700 - The arts; fine & decorative arts
10
900 - History & geography
10
140 - Specific philosophical schools
8
000 - Computer science, information & general works
7
380 - Commerce, communications & transportation
7
370 - Education
6
330 - Economics
5
333 - Economics of land & energy
5
340 - Law
4
551 - Geology, hydrology & meteorology
3
580 - Plants (Botany)
3
720 - Architecture
3
500 - Natural sciences & mathematics
2
610 - Medicine & health
2
170 - Ethics
1
300 - Social sciences
1
410 - Linguistics
1
530 - Physics
1
540 - Chemistry & allied sciences
1
550 - Earth sciences
1
576 - Genetics & evolution
1
581 - Specific topics in natural history
1