Classification
000 - Computer science, information & general works
380 - Commerce, communications & transportation
700 - The arts; fine & decorative arts
333 - Economics of land & energy
120
600 - Technology
104
363 - Other social problems & services
79
620 - Engineering & allied operations
74
610 - Medicine & health
63
900 - History & geography
62
330 - Economics
59
320 - Political science
52
140 - Specific philosophical schools
49
580 - Plants (Botany)
35
500 - Natural sciences & mathematics
32
576 - Genetics & evolution
30
551 - Geology, hydrology & meteorology
28
530 - Physics
26
540 - Chemistry & allied sciences
26
370 - Education
25
720 - Architecture
22
630 - Agriculture & related technologies
18
414 - Phonology & phonetics
17
658 - General management
16
340 - Law
15
400 - Language
15
300 - Social sciences
11
581 - Specific topics in natural history
10
800 - Literature & rhetoric
10
100 - Philosophy & psychology
9
612 - Human physiology
9
304 - Factors affecting social behavior
7
410 - Linguistics
7
780 - Music
5
200 - Religion
4
301 - Sociology & anthropology
4
170 - Ethics
3
361 - Social problems & social welfare in general
3
791 - Public performances
3
520 - Astronomy & allied sciences
2
590 - Animals (Zoology)
2
657 - Accounting
2
120 - Epistemology, causation & humankind
1
160 - Logic
1
360 - Social problems & services; associations
1
550 - Earth sciences
1
615 - Pharmacology & therapeutics
1
650 - Management & auxiliary services
1
770 - Photography, photographs & computer art
1