Classification
800 - Literature & rhetoric
900 - History & geography
23
700 - The arts; fine & decorative arts
10
320 - Political science
8
400 - Language
5
410 - Linguistics
5
300 - Social sciences
4
333 - Economics of land & energy
4
000 - Computer science, information & general works
3
100 - Philosophy & psychology
2
140 - Specific philosophical schools
2
200 - Religion
2
330 - Economics
2
340 - Law
2
370 - Education
2
530 - Physics
2
551 - Geology, hydrology & meteorology
2
600 - Technology
2
610 - Medicine & health
2
620 - Engineering & allied operations
2
658 - General management
2
001 - Knowledge
1
158 - Applied psychology
1
170 - Ethics
1
297 - Islam, Babism & Bahai Faith
1
303 - Social processes
1
304 - Factors affecting social behavior
1
338 - Production
1
361 - Social problems & social welfare in general
1
380 - Commerce, communications & transportation
1
384 - Communications; telecommunication
1
490 - Other languages
1
650 - Management & auxiliary services
1
720 - Architecture
1
780 - Music
1