Classification
600 - Technology
39
700 - The arts; fine & decorative arts
35
000 - Computer science, information & general works
31
620 - Engineering & allied operations
29
900 - History & geography
21
610 - Medicine & health
17
333 - Economics of land & energy
14
580 - Plants (Botany)
12
140 - Specific philosophical schools
10
363 - Other social problems & services
10
380 - Commerce, communications & transportation
8
630 - Agriculture & related technologies
8
551 - Geology, hydrology & meteorology
7
576 - Genetics & evolution
7
500 - Natural sciences & mathematics
5
320 - Political science
3
330 - Economics
3
400 - Language
3
414 - Phonology & phonetics
3
720 - Architecture
3
800 - Literature & rhetoric
3
410 - Linguistics
2
100 - Philosophy & psychology
1
160 - Logic
1
370 - Education
1
540 - Chemistry & allied sciences
1
581 - Specific topics in natural history
1
658 - General management
1
770 - Photography, photographs & computer art
1