Classification
000 - Computer science, information & general works
3
150 - Psychology
2
152 - Perception, movement, emotions & drives
4
153 - Mental processes & intelligence
2
155 - Differential & developmental psychology
3
158 - Applied psychology
14
170 - Ethics
1
177 - Ethics of social relations
1
300 - Social sciences
2
302 - Social interaction
7
330 - Economics
8
331 - Labor economics
2
338 - Production
2
380 - Commerce, communications & transportation
3
384 - Communications; telecommunication
8
500 - Natural sciences & mathematics
1
613 - Personal health & safety
2
648 - Housekeeping
1
650 - Management & auxiliary services
2
658 - General management
7