Classification
576 - Genetics & evolution
620 - Engineering & allied operations
658 - General management
700 - The arts; fine & decorative arts
10
600 - Technology
9
900 - History & geography
6
000 - Computer science, information & general works
5
380 - Commerce, communications & transportation
5
330 - Economics
4
333 - Economics of land & energy
4
363 - Other social problems & services
4
140 - Specific philosophical schools
3
610 - Medicine & health
3
320 - Political science
2
370 - Education
2
551 - Geology, hydrology & meteorology
2
580 - Plants (Botany)
2
720 - Architecture
2
800 - Literature & rhetoric
2
100 - Philosophy & psychology
1
170 - Ethics
1
300 - Social sciences
1
340 - Law
1
414 - Phonology & phonetics
1
500 - Natural sciences & mathematics
1
530 - Physics
1
540 - Chemistry & allied sciences
1
630 - Agriculture & related technologies
1