Classification
576 - Genetics & evolution
100 - Philosophy & psychology
4
330 - Economics
4
600 - Technology
4
320 - Political science
3
333 - Economics of land & energy
3
380 - Commerce, communications & transportation
3
620 - Engineering & allied operations
3
700 - The arts; fine & decorative arts
3
140 - Specific philosophical schools
2
170 - Ethics
2
340 - Law
2
530 - Physics
2
610 - Medicine & health
2
000 - Computer science, information & general works
1
200 - Religion
1
296 - Judaism
1
300 - Social sciences
1
363 - Other social problems & services
1
400 - Language
1
410 - Linguistics
1
540 - Chemistry & allied sciences
1
570 - Life sciences; biology
1
580 - Plants (Botany)
1
658 - General management
1
800 - Literature & rhetoric
1
900 - History & geography
1