Classification
333 - Economics of land & energy
4
410 - Linguistics
576 - Genetics & evolution
330 - Economics
3
000 - Computer science, information & general works
2
320 - Political science
2
363 - Other social problems & services
2
380 - Commerce, communications & transportation
2
600 - Technology
2
800 - Literature & rhetoric
2
160 - Logic
1
400 - Language
1
500 - Natural sciences & mathematics
1
530 - Physics
1
700 - The arts; fine & decorative arts
1