Classification
000 - Computer science, information & general works
530 - Physics
700 - The arts; fine & decorative arts
43
333 - Economics of land & energy
38
600 - Technology
15
576 - Genetics & evolution
12
363 - Other social problems & services
11
620 - Engineering & allied operations
11
380 - Commerce, communications & transportation
10
610 - Medicine & health
10
500 - Natural sciences & mathematics
8
900 - History & geography
7
140 - Specific philosophical schools
6
340 - Law
5
540 - Chemistry & allied sciences
5
580 - Plants (Botany)
5
658 - General management
5
414 - Phonology & phonetics
4
551 - Geology, hydrology & meteorology
4
330 - Economics
3
520 - Astronomy & allied sciences
3
304 - Factors affecting social behavior
2
370 - Education
2
400 - Language
2
630 - Agriculture & related technologies
2
800 - Literature & rhetoric
2
300 - Social sciences
1
320 - Political science
1
550 - Earth sciences
1
650 - Management & auxiliary services
1