Classification
000 - Computer science, information & general works
1
150 - Psychology
2
152 - Perception, movement, emotions & drives
1
153 - Mental processes & intelligence
2
158 - Applied psychology
16
170 - Ethics
1
174 - Occupational ethics
1
300 - Social sciences
9
302 - Social interaction
15
330 - Economics
331 - Labor economics
12
338 - Production
6
380 - Commerce, communications & transportation
381 - Commerce
3
384 - Communications; telecommunication
39
500 - Natural sciences & mathematics
2
650 - Management & auxiliary services
658 - General management
670 - Manufacturing
3
808 - Rhetoric & collections of literature
3