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