Classification
100 - Philosophy & psychology
1
152 - Perception, movement, emotions & drives
1
200 - Religion
2
300 - Social sciences
3
301 - Sociology & anthropology
2
302 - Social interaction
3
330 - Economics
4
331 - Labor economics
3
340 - Law
1
380 - Commerce, communications & transportation
384 - Communications; telecommunication
5
500 - Natural sciences & mathematics
1
650 - Management & auxiliary services
1
658 - General management
4
670 - Manufacturing
1
700 - The arts; fine & decorative arts
1
720 - Architecture
1
900 - History & geography
2