Classification
100 - Philosophy & psychology
370 - Education
26
333 - Economics of land & energy
20
700 - The arts; fine & decorative arts
19
610 - Medicine & health
15
140 - Specific philosophical schools
10
900 - History & geography
8
000 - Computer science, information & general works
7
320 - Political science
7
363 - Other social problems & services
7
380 - Commerce, communications & transportation
7
400 - Language
7
600 - Technology
7
330 - Economics
6
500 - Natural sciences & mathematics
6
200 - Religion
5
170 - Ethics
4
620 - Engineering & allied operations
4
780 - Music
4
800 - Literature & rhetoric
4
300 - Social sciences
3
612 - Human physiology
3
304 - Factors affecting social behavior
2
340 - Law
2
410 - Linguistics
2
576 - Genetics & evolution
2
657 - Accounting
2
720 - Architecture
2
120 - Epistemology, causation & humankind
1
155 - Differential & developmental psychology
1
296 - Judaism
1
301 - Sociology & anthropology
1
361 - Social problems & social welfare in general
1
520 - Astronomy & allied sciences
1
551 - Geology, hydrology & meteorology
1
580 - Plants (Botany)
1