Classification
000 - Computer science, information & general works
140 - Specific philosophical schools
2
330 - Economics
380 - Commerce, communications & transportation
500 - Natural sciences & mathematics
600 - Technology
2
610 - Medicine & health
700 - The arts; fine & decorative arts
2
333 - Economics of land & energy
1
576 - Genetics & evolution
1
620 - Engineering & allied operations
1
658 - General management
1
900 - History & geography
1