Classification
530 - Physics
620 - Engineering & allied operations
17
700 - The arts; fine & decorative arts
12
333 - Economics of land & energy
7
500 - Natural sciences & mathematics
5
000 - Computer science, information & general works
3
540 - Chemistry & allied sciences
3
791 - Public performances
3
003 - Systems
2
006 - Special computer methods
1
140 - Specific philosophical schools
1
330 - Economics
1
340 - Law
1
580 - Plants (Botany)
1
600 - Technology
1
610 - Medicine & health
1
658 - General management
1