Classification
363 - Other social problems & services
2
380 - Commerce, communications & transportation
2
600 - Technology
658 - General management
900 - History & geography
000 - Computer science, information & general works
1
140 - Specific philosophical schools
1
333 - Economics of land & energy
1
370 - Education
1
400 - Language
1
410 - Linguistics
1
576 - Genetics & evolution
1
580 - Plants (Botany)
1
610 - Medicine & health
1
620 - Engineering & allied operations
1
700 - The arts; fine & decorative arts
1