Classification
320 - Political science
330 - Economics
380 - Commerce, communications & transportation
300 - Social sciences
5
900 - History & geography
5
340 - Law
2
630 - Agriculture & related technologies
2
100 - Philosophy & psychology
1
140 - Specific philosophical schools
1
170 - Ethics
1
200 - Religion
1
301 - Sociology & anthropology
1
304 - Factors affecting social behavior
1
361 - Social problems & social welfare in general
1
576 - Genetics & evolution
1
580 - Plants (Botany)
1
600 - Technology
1
657 - Accounting
1
700 - The arts; fine & decorative arts
1