Classification
000 - Computer science, information & general works
333 - Economics of land & energy
3
500 - Natural sciences & mathematics
576 - Genetics & evolution
140 - Specific philosophical schools
2
380 - Commerce, communications & transportation
2
600 - Technology
2
610 - Medicine & health
2
620 - Engineering & allied operations
2
700 - The arts; fine & decorative arts
2
900 - History & geography
2
100 - Philosophy & psychology
1
120 - Epistemology, causation & humankind
1
170 - Ethics
1
330 - Economics
1
340 - Law
1
400 - Language
1
410 - Linguistics
1
530 - Physics
1