Classification
000 - Computer science, information & general works
700 - The arts; fine & decorative arts
125
500 - Natural sciences & mathematics
81
610 - Medicine & health
73
333 - Economics of land & energy
70
600 - Technology
69
576 - Genetics & evolution
67
620 - Engineering & allied operations
48
363 - Other social problems & services
43
580 - Plants (Botany)
33
900 - History & geography
33
140 - Specific philosophical schools
32
330 - Economics
28
380 - Commerce, communications & transportation
27
340 - Law
20
530 - Physics
20
658 - General management
20
540 - Chemistry & allied sciences
19
800 - Literature & rhetoric
13
304 - Factors affecting social behavior
12
551 - Geology, hydrology & meteorology
12
630 - Agriculture & related technologies
12
720 - Architecture
10
581 - Specific topics in natural history
9
320 - Political science
8
400 - Language
8
414 - Phonology & phonetics
6
370 - Education
5
612 - Human physiology
5
615 - Pharmacology & therapeutics
4
100 - Philosophy & psychology
3
410 - Linguistics
3
170 - Ethics
2
550 - Earth sciences
2
780 - Music
2
120 - Epistemology, causation & humankind
1
300 - Social sciences
1
361 - Social problems & social welfare in general
1
364 - Criminology
1
590 - Animals (Zoology)
1
657 - Accounting
1
745 - Decorative arts
1