Classification
500 - Natural sciences & mathematics
658 - General management
38
330 - Economics
35
302 - Social interaction
28
300 - Social sciences
20
670 - Manufacturing
20
158 - Applied psychology
8
331 - Labor economics
8
381 - Commerce
7
384 - Communications; telecommunication
7
006 - Special computer methods
5
153 - Mental processes & intelligence
5
650 - Management & auxiliary services
5
303 - Social processes
4
332 - Financial economics
4
339 - Macroeconomics & related topics
4
745 - Decorative arts
4
150 - Psychology
3
338 - Production
3
004 - Data processing & computer science
2
152 - Perception, movement, emotions & drives
2
155 - Differential & developmental psychology
2
620 - Engineering & allied operations
2
001 - Knowledge
1
306 - Culture & institutions
1
380 - Commerce, communications & transportation
1
604 - Special topics
1
741 - Drawing & drawings
1
751 - Techniques, equipment, materials & forms
1
770 - Photography, photographs & computer art
1
771 - Techniques, equipment & materials
1