Classification
000 - Computer science, information & general works
600 - Technology
658 - General management
330 - Economics
35
700 - The arts; fine & decorative arts
28
333 - Economics of land & energy
25
620 - Engineering & allied operations
23
363 - Other social problems & services
17
900 - History & geography
17
610 - Medicine & health
16
140 - Specific philosophical schools
14
380 - Commerce, communications & transportation
14
576 - Genetics & evolution
10
630 - Agriculture & related technologies
10
500 - Natural sciences & mathematics
8
320 - Political science
7
580 - Plants (Botany)
7
331 - Labor economics
5
551 - Geology, hydrology & meteorology
4
338 - Production
3
370 - Education
3
720 - Architecture
3
100 - Philosophy & psychology
2
400 - Language
2
410 - Linguistics
2
581 - Specific topics in natural history
2
153 - Mental processes & intelligence
1
200 - Religion
1
300 - Social sciences
1
336 - Public finance
1
340 - Law
1
361 - Social problems & social welfare in general
1
364 - Criminology
1
374 - Adult education
1
530 - Physics
1
540 - Chemistry & allied sciences
1
780 - Music
1