Classification
600 - Technology
400 - Language
106
000 - Computer science, information & general works
60
620 - Engineering & allied operations
52
700 - The arts; fine & decorative arts
52
370 - Education
34
900 - History & geography
34
140 - Specific philosophical schools
30
330 - Economics
29
380 - Commerce, communications & transportation
27
410 - Linguistics
24
610 - Medicine & health
21
005 - Computer programming, programs & data
20
333 - Economics of land & energy
18
363 - Other social problems & services
17
576 - Genetics & evolution
16
500 - Natural sciences & mathematics
15
300 - Social sciences
14
658 - General management
11
720 - Architecture
11
100 - Philosophy & psychology
10
629 - Other branches of engineering
10
320 - Political science
9
340 - Law
8
580 - Plants (Botany)
8
630 - Agriculture & related technologies
7
800 - Literature & rhetoric
7
331 - Labor economics
6
780 - Music
5
530 - Physics
4
004 - Data processing & computer science
3
006 - Special computer methods
3
301 - Sociology & anthropology
3
414 - Phonology & phonetics
3
540 - Chemistry & allied sciences
3
304 - Factors affecting social behavior
2
120 - Epistemology, causation & humankind
1
160 - Logic
1
170 - Ethics
1
200 - Religion
1
332 - Financial economics
1
338 - Production
1
519 - Probabilities & applied mathematics
1
551 - Geology, hydrology & meteorology
1
581 - Specific topics in natural history
1
615 - Pharmacology & therapeutics
1
651 - Office services
1
657 - Accounting
1
745 - Decorative arts
1