Classification
140 - Specific philosophical schools
330 - Economics
700 - The arts; fine & decorative arts
600 - Technology
12
363 - Other social problems & services
11
333 - Economics of land & energy
10
380 - Commerce, communications & transportation
10
610 - Medicine & health
9
000 - Computer science, information & general works
8
620 - Engineering & allied operations
8
320 - Political science
6
900 - History & geography
6
370 - Education
5
658 - General management
5
630 - Agriculture & related technologies
4
340 - Law
3
500 - Natural sciences & mathematics
3
720 - Architecture
3
300 - Social sciences
2
400 - Language
2
551 - Geology, hydrology & meteorology
2
576 - Genetics & evolution
2
581 - Specific topics in natural history
2
160 - Logic
1
297 - Islam, Babism & Bahai Faith
1
301 - Sociology & anthropology
1
350 - Public administration & military science
1
361 - Social problems & social welfare in general
1
410 - Linguistics
1
580 - Plants (Botany)
1
612 - Human physiology
1
657 - Accounting
1