Classification
363 - Other social problems & services
610 - Medicine & health
4
615 - Pharmacology & therapeutics
380 - Commerce, communications & transportation
2
600 - Technology
2
700 - The arts; fine & decorative arts
2
140 - Specific philosophical schools
1
330 - Economics
1
333 - Economics of land & energy
1
540 - Chemistry & allied sciences
1
580 - Plants (Botany)
1
658 - General management
1