Classification
000 - Computer science, information & general works
4
330 - Economics
600 - Technology
4
400 - Language
3
500 - Natural sciences & mathematics
2
576 - Genetics & evolution
2
300 - Social sciences
1
363 - Other social problems & services
1
370 - Education
1
380 - Commerce, communications & transportation
1
610 - Medicine & health
1
620 - Engineering & allied operations
1
658 - General management
1
700 - The arts; fine & decorative arts
1
720 - Architecture
1
900 - History & geography
1