Classification
000 - Computer science, information & general works
330 - Economics
333 - Economics of land & energy
4
700 - The arts; fine & decorative arts
4
340 - Law
3
500 - Natural sciences & mathematics
3
600 - Technology
3
620 - Engineering & allied operations
3
900 - History & geography
3
320 - Political science
2
363 - Other social problems & services
2
380 - Commerce, communications & transportation
2
530 - Physics
2
140 - Specific philosophical schools
1
410 - Linguistics
1
414 - Phonology & phonetics
1
540 - Chemistry & allied sciences
1
576 - Genetics & evolution
1
580 - Plants (Botany)
1
658 - General management
1
720 - Architecture
1