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