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