Classification
330 - Economics
700 - The arts; fine & decorative arts
900 - History & geography
19
363 - Other social problems & services
10
320 - Political science
8
000 - Computer science, information & general works
6
301 - Sociology & anthropology
6
333 - Economics of land & energy
6
140 - Specific philosophical schools
5
200 - Religion
4
300 - Social sciences
4
400 - Language
4
800 - Literature & rhetoric
4
340 - Law
3
370 - Education
3
380 - Commerce, communications & transportation
3
610 - Medicine & health
3
100 - Philosophy & psychology
2
297 - Islam, Babism & Bahai Faith
2
410 - Linguistics
2
620 - Engineering & allied operations
2
720 - Architecture
2
780 - Music
2
120 - Epistemology, causation & humankind
1
170 - Ethics
1
304 - Factors affecting social behavior
1
520 - Astronomy & allied sciences
1
540 - Chemistry & allied sciences
1
576 - Genetics & evolution
1
581 - Specific topics in natural history
1
600 - Technology
1
630 - Agriculture & related technologies
1
657 - Accounting
1
658 - General management
1
791 - Public performances
1