Classification
414 - Phonology & phonetics
600 - Technology
620 - Engineering & allied operations
92
700 - The arts; fine & decorative arts
85
900 - History & geography
65
333 - Economics of land & energy
47
363 - Other social problems & services
35
000 - Computer science, information & general works
28
580 - Plants (Botany)
28
610 - Medicine & health
21
380 - Commerce, communications & transportation
18
576 - Genetics & evolution
18
630 - Agriculture & related technologies
18
330 - Economics
13
540 - Chemistry & allied sciences
10
340 - Law
8
551 - Geology, hydrology & meteorology
8
500 - Natural sciences & mathematics
7
140 - Specific philosophical schools
6
304 - Factors affecting social behavior
6
800 - Literature & rhetoric
6
320 - Political science
3
400 - Language
3
530 - Physics
3
720 - Architecture
3
612 - Human physiology
2
370 - Education
1
550 - Earth sciences
1
581 - Specific topics in natural history
1
650 - Management & auxiliary services
1
658 - General management
1