Classification
500 - Natural sciences & mathematics
650 - Management & auxiliary services
330 - Economics
129
658 - General management
128
300 - Social sciences
104
302 - Social interaction
102
670 - Manufacturing
94
158 - Applied psychology
85
153 - Mental processes & intelligence
35
338 - Production
30
331 - Labor economics
24
381 - Commerce
18
620 - Engineering & allied operations
8
384 - Communications; telecommunication
6
001 - Knowledge
3
004 - Data processing & computer science
3
005 - Computer programming, programs & data
3
020 - Library & information sciences
3
155 - Differential & developmental psychology
3
150 - Psychology
2
380 - Commerce, communications & transportation
2
745 - Decorative arts
2
006 - Special computer methods
1
152 - Perception, movement, emotions & drives
1
303 - Social processes
1
305 - Social groups
1
510 - Mathematics
1
610 - Medicine & health
1
629 - Other branches of engineering
1
651 - Office services
1
741 - Drawing & drawings
1