Classification
000 - Computer science, information & general works
330 - Economics
700 - The arts; fine & decorative arts
4
363 - Other social problems & services
3
380 - Commerce, communications & transportation
3
333 - Economics of land & energy
2
540 - Chemistry & allied sciences
2
600 - Technology
2
500 - Natural sciences & mathematics
1
530 - Physics
1
580 - Plants (Botany)
1
610 - Medicine & health
1
620 - Engineering & allied operations
1
900 - History & geography
1