Classification
500 - Natural sciences & mathematics
530 - Physics
333 - Economics of land & energy
2
600 - Technology
2
000 - Computer science, information & general works
1
331 - Labor economics
1
340 - Law
1
410 - Linguistics
1
510 - Mathematics
1
540 - Chemistry & allied sciences
1
576 - Genetics & evolution
1
620 - Engineering & allied operations
1
700 - The arts; fine & decorative arts
1