Classification
000 - Computer science, information & general works
4
006 - Special computer methods
1
150 - Psychology
4
152 - Perception, movement, emotions & drives
2
153 - Mental processes & intelligence
2
155 - Differential & developmental psychology
2
158 - Applied psychology
27
170 - Ethics
1
174 - Occupational ethics
1
300 - Social sciences
16
302 - Social interaction
31
320 - Political science
1
330 - Economics
60
331 - Labor economics
17
333 - Economics of land & energy
3
338 - Production
7
363 - Other social problems & services
2
380 - Commerce, communications & transportation
381 - Commerce
4
384 - Communications; telecommunication
67
500 - Natural sciences & mathematics
2
519 - Probabilities & applied mathematics
1
530 - Physics
1
576 - Genetics & evolution
2
600 - Technology
3
620 - Engineering & allied operations
1
650 - Management & auxiliary services
651 - Office services
2
657 - Accounting
1
658 - General management
43
670 - Manufacturing
3
700 - The arts; fine & decorative arts
2
808 - Rhetoric & collections of literature
3
900 - History & geography
2