Classification
140 - Specific philosophical schools
2
340 - Law
363 - Other social problems & services
380 - Commerce, communications & transportation
2
400 - Language
2
580 - Plants (Botany)
2
610 - Medicine & health
700 - The arts; fine & decorative arts
000 - Computer science, information & general works
1
330 - Economics
1
540 - Chemistry & allied sciences
1
600 - Technology
1
620 - Engineering & allied operations
1