Classification
340 - Law
400 - Language
410 - Linguistics
700 - The arts; fine & decorative arts
5
900 - History & geography
5
100 - Philosophy & psychology
3
200 - Religion
3
370 - Education
3
800 - Literature & rhetoric
3
140 - Specific philosophical schools
2
170 - Ethics
2
300 - Social sciences
2
320 - Political science
2
330 - Economics
2
380 - Commerce, communications & transportation
2
600 - Technology
2
000 - Computer science, information & general works
1
301 - Sociology & anthropology
1
333 - Economics of land & energy
1
363 - Other social problems & services
1
580 - Plants (Botany)
1
610 - Medicine & health
1
620 - Engineering & allied operations
1
658 - General management
1
770 - Photography, photographs & computer art
1