Classification
000 - Computer science, information & general works
330 - Economics
580 - Plants (Botany)
333 - Economics of land & energy
46
700 - The arts; fine & decorative arts
40
363 - Other social problems & services
37
600 - Technology
37
610 - Medicine & health
24
620 - Engineering & allied operations
20
630 - Agriculture & related technologies
19
551 - Geology, hydrology & meteorology
18
380 - Commerce, communications & transportation
13
140 - Specific philosophical schools
12
900 - History & geography
11
658 - General management
9
320 - Political science
8
576 - Genetics & evolution
8
720 - Architecture
7
304 - Factors affecting social behavior
5
340 - Law
5
540 - Chemistry & allied sciences
5
581 - Specific topics in natural history
5
800 - Literature & rhetoric
5
530 - Physics
4
100 - Philosophy & psychology
3
400 - Language
3
370 - Education
2
612 - Human physiology
2
657 - Accounting
2
336 - Public finance
1
361 - Social problems & social welfare in general
1
414 - Phonology & phonetics
1
500 - Natural sciences & mathematics
1
520 - Astronomy & allied sciences
1
615 - Pharmacology & therapeutics
1
770 - Photography, photographs & computer art
1