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