Classification
140 - Specific philosophical schools
320 - Political science
340 - Law
576 - Genetics & evolution
600 - Technology
620 - Engineering & allied operations
4
700 - The arts; fine & decorative arts
363 - Other social problems & services
3
380 - Commerce, communications & transportation
3
500 - Natural sciences & mathematics
3
720 - Architecture
3
900 - History & geography
3
170 - Ethics
1
580 - Plants (Botany)
1
658 - General management
1