Classification
380 - Commerce, communications & transportation
700 - The arts; fine & decorative arts
900 - History & geography
600 - Technology
181
620 - Engineering & allied operations
171
333 - Economics of land & energy
107
000 - Computer science, information & general works
59
330 - Economics
55
363 - Other social problems & services
54
140 - Specific philosophical schools
36
720 - Architecture
31
610 - Medicine & health
30
320 - Political science
27
576 - Genetics & evolution
27
580 - Plants (Botany)
19
370 - Education
17
551 - Geology, hydrology & meteorology
14
400 - Language
11
500 - Natural sciences & mathematics
11
800 - Literature & rhetoric
11
340 - Law
10
658 - General management
10
100 - Philosophy & psychology
9
300 - Social sciences
9
630 - Agriculture & related technologies
9
780 - Music
8
530 - Physics
7
540 - Chemistry & allied sciences
6
414 - Phonology & phonetics
5
581 - Specific topics in natural history
5
200 - Religion
4
304 - Factors affecting social behavior
4
410 - Linguistics
4
170 - Ethics
3
612 - Human physiology
3
770 - Photography, photographs & computer art
3
791 - Public performances
3
301 - Sociology & anthropology
2
120 - Epistemology, causation & humankind
1
361 - Social problems & social welfare in general
1
550 - Earth sciences
1
590 - Animals (Zoology)
1
650 - Management & auxiliary services
1