Classification
610 - Medicine & health
700 - The arts; fine & decorative arts
257
600 - Technology
172
000 - Computer science, information & general works
150
333 - Economics of land & energy
125
140 - Specific philosophical schools
106
620 - Engineering & allied operations
105
363 - Other social problems & services
90
900 - History & geography
88
370 - Education
73
380 - Commerce, communications & transportation
65
580 - Plants (Botany)
64
330 - Economics
57
500 - Natural sciences & mathematics
39
400 - Language
33
320 - Political science
31
630 - Agriculture & related technologies
30
576 - Genetics & evolution
29
551 - Geology, hydrology & meteorology
28
658 - General management
27
720 - Architecture
24
540 - Chemistry & allied sciences
22
100 - Philosophy & psychology
20
612 - Human physiology
18
800 - Literature & rhetoric
18
615 - Pharmacology & therapeutics
16
300 - Social sciences
14
581 - Specific topics in natural history
13
414 - Phonology & phonetics
12
304 - Factors affecting social behavior
11
530 - Physics
11
340 - Law
10
170 - Ethics
8
410 - Linguistics
7
200 - Religion
6
780 - Music
5
120 - Epistemology, causation & humankind
4
361 - Social problems & social welfare in general
4
306 - Culture & institutions
3
657 - Accounting
3
360 - Social problems & services; associations
2
520 - Astronomy & allied sciences
2
550 - Earth sciences
2
770 - Photography, photographs & computer art
2
160 - Logic
1
301 - Sociology & anthropology
1
364 - Criminology
1
519 - Probabilities & applied mathematics
1
616 - Diseases
1