Classification
300 - Social sciences
330 - Economics
320 - Political science
585
630 - Agriculture & related technologies
106
900 - History & geography
59
658 - General management
27
500 - Natural sciences & mathematics
25
302 - Social interaction
21
670 - Manufacturing
19
340 - Law
11
700 - The arts; fine & decorative arts
10
650 - Management & auxiliary services
9
610 - Medicine & health
7
170 - Ethics
6
381 - Commerce
4
338 - Production
3
380 - Commerce, communications & transportation
3
384 - Communications; telecommunication
3
100 - Philosophy & psychology
2
331 - Labor economics
2
370 - Education
2
600 - Technology
2
000 - Computer science, information & general works
1
006 - Special computer methods
1
158 - Applied psychology
1
271 - Religious orders in church history
1
304 - Factors affecting social behavior
1
336 - Public finance
1
361 - Social problems & social welfare in general
1
363 - Other social problems & services
1
576 - Genetics & evolution
1
720 - Architecture
1
745 - Decorative arts
1
943 - Central Europe; Germany
1