Classification
000 - Computer science, information & general works
2
140 - Specific philosophical schools
2
330 - Economics
2
370 - Education
2
610 - Medicine & health
2
170 - Ethics
1
200 - Religion
1
320 - Political science
1
333 - Economics of land & energy
1
361 - Social problems & social welfare in general
1
363 - Other social problems & services
1
380 - Commerce, communications & transportation
1
400 - Language
1
551 - Geology, hydrology & meteorology
1
576 - Genetics & evolution
1
600 - Technology
1
700 - The arts; fine & decorative arts
1
900 - History & geography
1