Classification
363 - Other social problems & services
370 - Education
576 - Genetics & evolution
610 - Medicine & health
140 - Specific philosophical schools
3
380 - Commerce, communications & transportation
3
600 - Technology
3
620 - Engineering & allied operations
3
900 - History & geography
3
000 - Computer science, information & general works
2
658 - General management
2
700 - The arts; fine & decorative arts
2
333 - Economics of land & energy
1
400 - Language
1
410 - Linguistics
1
551 - Geology, hydrology & meteorology
1