Classification
610 - Medicine & health
7
000 - Computer science, information & general works
6
140 - Specific philosophical schools
4
333 - Economics of land & energy
3
540 - Chemistry & allied sciences
3
380 - Commerce, communications & transportation
2
700 - The arts; fine & decorative arts
2
500 - Natural sciences & mathematics
1
576 - Genetics & evolution
1
620 - Engineering & allied operations
1