Classification
330 - Economics
333 - Economics of land & energy
4
700 - The arts; fine & decorative arts
720 - Architecture
576 - Genetics & evolution
3
000 - Computer science, information & general works
2
580 - Plants (Botany)
2
600 - Technology
2
620 - Engineering & allied operations
2
900 - History & geography
2
140 - Specific philosophical schools
1
320 - Political science
1
340 - Law
1
363 - Other social problems & services
1
370 - Education
1
380 - Commerce, communications & transportation
1
610 - Medicine & health
1
630 - Agriculture & related technologies
1