Classification
363 - Other social problems & services
400 - Language
410 - Linguistics
600 - Technology
610 - Medicine & health
2
900 - History & geography
140 - Specific philosophical schools
1
340 - Law
1
370 - Education
1
380 - Commerce, communications & transportation
1
576 - Genetics & evolution
1
620 - Engineering & allied operations
1
658 - General management
1