Classification
320 - Political science
340 - Law
700 - The arts; fine & decorative arts
16
363 - Other social problems & services
15
000 - Computer science, information & general works
12
333 - Economics of land & energy
12
330 - Economics
11
380 - Commerce, communications & transportation
11
600 - Technology
11
900 - History & geography
8
610 - Medicine & health
7
140 - Specific philosophical schools
6
500 - Natural sciences & mathematics
5
576 - Genetics & evolution
5
620 - Engineering & allied operations
5
630 - Agriculture & related technologies
4
370 - Education
3
551 - Geology, hydrology & meteorology
3
720 - Architecture
3
170 - Ethics
2
200 - Religion
2
301 - Sociology & anthropology
2
410 - Linguistics
2
580 - Plants (Botany)
2
657 - Accounting
2
658 - General management
2
100 - Philosophy & psychology
1
300 - Social sciences
1
304 - Factors affecting social behavior
1
361 - Social problems & social welfare in general
1
398 - Folklore
1
400 - Language
1
414 - Phonology & phonetics
1
530 - Physics
1
581 - Specific topics in natural history
1
800 - Literature & rhetoric
1