Classification
158 - Applied psychology
300 - Social sciences
330 - Economics
650 - Management & auxiliary services
658 - General management
302 - Social interaction
131
500 - Natural sciences & mathematics
71
670 - Manufacturing
68
338 - Production
61
331 - Labor economics
42
153 - Mental processes & intelligence
26
381 - Commerce
19
170 - Ethics
9
384 - Communications; telecommunication
8
000 - Computer science, information & general works
7
620 - Engineering & allied operations
7
001 - Knowledge
5
005 - Computer programming, programs & data
2
150 - Psychology
2
155 - Differential & developmental psychology
2
174 - Occupational ethics
2
380 - Commerce, communications & transportation
2
610 - Medicine & health
2
745 - Decorative arts
2
006 - Special computer methods
1
303 - Social processes
1
332 - Financial economics
1
352 - General considerations of public administration
1
659 - Advertising & public relations
1
800 - Literature & rhetoric
1