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