Classification
000 - Computer science, information & general works
330 - Economics
380 - Commerce, communications & transportation
658 - General management
384 - Communications; telecommunication
44
302 - Social interaction
17
670 - Manufacturing
10
381 - Commerce
9
600 - Technology
8
333 - Economics of land & energy
7
363 - Other social problems & services
7
338 - Production
6
610 - Medicine & health
6
700 - The arts; fine & decorative arts
6
140 - Specific philosophical schools
5
808 - Rhetoric & collections of literature
5
331 - Labor economics
4
320 - Political science
3
340 - Law
3
530 - Physics
3
576 - Genetics & evolution
3
620 - Engineering & allied operations
3
900 - History & geography
3
153 - Mental processes & intelligence
2
300 - Social sciences
2
370 - Education
2
500 - Natural sciences & mathematics
2
720 - Architecture
2
006 - Special computer methods
1
158 - Applied psychology
1
297 - Islam, Babism & Bahai Faith
1
361 - Social problems & social welfare in general
1
400 - Language
1
410 - Linguistics
1
551 - Geology, hydrology & meteorology
1
580 - Plants (Botany)
1
581 - Specific topics in natural history
1
612 - Human physiology
1
630 - Agriculture & related technologies
1
650 - Management & auxiliary services
1
791 - Public performances
1