Classification
000 - Computer science, information & general works
380 - Commerce, communications & transportation
247
700 - The arts; fine & decorative arts
134
333 - Economics of land & energy
113
600 - Technology
86
363 - Other social problems & services
83
620 - Engineering & allied operations
65
610 - Medicine & health
59
330 - Economics
57
140 - Specific philosophical schools
47
900 - History & geography
46
580 - Plants (Botany)
41
551 - Geology, hydrology & meteorology
37
576 - Genetics & evolution
34
500 - Natural sciences & mathematics
31
320 - Political science
27
540 - Chemistry & allied sciences
25
530 - Physics
24
414 - Phonology & phonetics
19
658 - General management
19
340 - Law
16
370 - Education
15
630 - Agriculture & related technologies
14
612 - Human physiology
13
720 - Architecture
13
581 - Specific topics in natural history
10
304 - Factors affecting social behavior
8
400 - Language
7
800 - Literature & rhetoric
7
550 - Earth sciences
5
300 - Social sciences
4
410 - Linguistics
4
100 - Philosophy & psychology
3
331 - Labor economics
3
361 - Social problems & social welfare in general
3
615 - Pharmacology & therapeutics
3
657 - Accounting
3
170 - Ethics
2
200 - Religion
2
590 - Animals (Zoology)
2
120 - Epistemology, causation & humankind
1
160 - Logic
1
364 - Criminology
1
650 - Management & auxiliary services
1
770 - Photography, photographs & computer art
1