Classification
000 - Computer science, information & general works
1
006 - Special computer methods
4
028 - Reading & use of other information media
1
150 - Psychology
3
152 - Perception, movement, emotions & drives
1
153 - Mental processes & intelligence
5
155 - Differential & developmental psychology
1
158 - Applied psychology
2
300 - Social sciences
72
302 - Social interaction
72
330 - Economics
68
331 - Labor economics
12
338 - Production
6
380 - Commerce, communications & transportation
381 - Commerce
7
384 - Communications; telecommunication
500 - Natural sciences & mathematics
57
620 - Engineering & allied operations
1
650 - Management & auxiliary services
4
658 - General management
75
670 - Manufacturing
56
808 - Rhetoric & collections of literature
4