Classification
000 - Computer science, information & general works
320 - Political science
330 - Economics
333 - Economics of land & energy
2
380 - Commerce, communications & transportation
500 - Natural sciences & mathematics
700 - The arts; fine & decorative arts
140 - Specific philosophical schools
1
340 - Law
1
530 - Physics
1
576 - Genetics & evolution
1
600 - Technology
1
620 - Engineering & allied operations
1
630 - Agriculture & related technologies
1