Classification
700 - The arts; fine & decorative arts
74
600 - Technology
71
620 - Engineering & allied operations
40
333 - Economics of land & energy
35
000 - Computer science, information & general works
28
540 - Chemistry & allied sciences
27
900 - History & geography
26
610 - Medicine & health
18
380 - Commerce, communications & transportation
14
363 - Other social problems & services
13
414 - Phonology & phonetics
13
140 - Specific philosophical schools
12
530 - Physics
10
580 - Plants (Botany)
9
330 - Economics
7
800 - Literature & rhetoric
7
576 - Genetics & evolution
5
304 - Factors affecting social behavior
3
500 - Natural sciences & mathematics
3
630 - Agriculture & related technologies
3
340 - Law
2
612 - Human physiology
2