Classification
300 - Social sciences
320 - Political science
700 - The arts; fine & decorative arts
330 - Economics
47
900 - History & geography
20
340 - Law
12
600 - Technology
11
100 - Philosophy & psychology
9
333 - Economics of land & energy
8
630 - Agriculture & related technologies
8
140 - Specific philosophical schools
7
301 - Sociology & anthropology
7
370 - Education
6
620 - Engineering & allied operations
6
720 - Architecture
6
000 - Computer science, information & general works
5
380 - Commerce, communications & transportation
5
400 - Language
5
780 - Music
4
297 - Islam, Babism & Bahai Faith
3
304 - Factors affecting social behavior
3
363 - Other social problems & services
3
658 - General management
3
770 - Photography, photographs & computer art
3
170 - Ethics
2
361 - Social problems & social welfare in general
2
410 - Linguistics
2
120 - Epistemology, causation & humankind
1
160 - Logic
1
200 - Religion
1
296 - Judaism
1
337 - International economics
1
500 - Natural sciences & mathematics
1
530 - Physics
1
551 - Geology, hydrology & meteorology
1
580 - Plants (Botany)
1
581 - Specific topics in natural history
1
610 - Medicine & health
1
650 - Management & auxiliary services
1
657 - Accounting
1
791 - Public performances
1