Classification
153 - Mental processes & intelligence
338 - Production
658 - General management
170
330 - Economics
166
650 - Management & auxiliary services
116
300 - Social sciences
68
302 - Social interaction
49
000 - Computer science, information & general works
39
158 - Applied psychology
23
331 - Labor economics
18
500 - Natural sciences & mathematics
18
670 - Manufacturing
18
381 - Commerce
6
001 - Knowledge
5
150 - Psychology
5
303 - Social processes
5
332 - Financial economics
5
384 - Communications; telecommunication
5
620 - Engineering & allied operations
5
006 - Special computer methods
3
745 - Decorative arts
3
380 - Commerce, communications & transportation
2
004 - Data processing & computer science
1
155 - Differential & developmental psychology
1
336 - Public finance
1
510 - Mathematics
1
600 - Technology
1
615 - Pharmacology & therapeutics
1
621 - Applied physics
1
629 - Other branches of engineering
1
657 - Accounting
1
659 - Advertising & public relations
1