Classification
300 - Social sciences
320 - Political science
600 - Technology
000 - Computer science, information & general works
2
330 - Economics
2
340 - Law
2
363 - Other social problems & services
2
610 - Medicine & health
2
700 - The arts; fine & decorative arts
2
170 - Ethics
1
304 - Factors affecting social behavior
1
370 - Education
1
380 - Commerce, communications & transportation
1
620 - Engineering & allied operations
1
900 - History & geography
1