Classification
000 - Computer science, information & general works
140 - Specific philosophical schools
620 - Engineering & allied operations
600 - Technology
49
700 - The arts; fine & decorative arts
42
900 - History & geography
31
333 - Economics of land & energy
27
610 - Medicine & health
24
380 - Commerce, communications & transportation
23
363 - Other social problems & services
22
330 - Economics
16
576 - Genetics & evolution
11
630 - Agriculture & related technologies
11
720 - Architecture
10
540 - Chemistry & allied sciences
9
400 - Language
8
500 - Natural sciences & mathematics
8
580 - Plants (Botany)
8
370 - Education
7
658 - General management
7
320 - Political science
6
551 - Geology, hydrology & meteorology
6
300 - Social sciences
4
612 - Human physiology
4
170 - Ethics
3
414 - Phonology & phonetics
3
581 - Specific topics in natural history
3
100 - Philosophy & psychology
2
340 - Law
2
361 - Social problems & social welfare in general
2
410 - Linguistics
1
530 - Physics
1
657 - Accounting
1
800 - Literature & rhetoric
1