Classification
000 - Computer science, information & general works
9
140 - Specific philosophical schools
3
330 - Economics
5
333 - Economics of land & energy
11
340 - Law
3
363 - Other social problems & services
4
380 - Commerce, communications & transportation
7
400 - Language
1
414 - Phonology & phonetics
5
500 - Natural sciences & mathematics
3
530 - Physics
3
540 - Chemistry & allied sciences
1
551 - Geology, hydrology & meteorology
2
576 - Genetics & evolution
4
580 - Plants (Botany)
2
600 - Technology
39
610 - Medicine & health
1
620 - Engineering & allied operations
39
630 - Agriculture & related technologies
2
657 - Accounting
1
700 - The arts; fine & decorative arts
21
800 - Literature & rhetoric
2
900 - History & geography