Classification
600 - Technology
610 - Medicine & health
900 - History & geography
620 - Engineering & allied operations
194
700 - The arts; fine & decorative arts
130
333 - Economics of land & energy
100
363 - Other social problems & services
60
330 - Economics
43
000 - Computer science, information & general works
36
380 - Commerce, communications & transportation
34
580 - Plants (Botany)
32
140 - Specific philosophical schools
31
370 - Education
25
720 - Architecture
20
320 - Political science
19
576 - Genetics & evolution
16
100 - Philosophy & psychology
15
300 - Social sciences
15
500 - Natural sciences & mathematics
14
630 - Agriculture & related technologies
13
551 - Geology, hydrology & meteorology
10
800 - Literature & rhetoric
10
400 - Language
9
414 - Phonology & phonetics
9
170 - Ethics
8
540 - Chemistry & allied sciences
8
340 - Law
7
530 - Physics
7
658 - General management
7
410 - Linguistics
6
304 - Factors affecting social behavior
4
780 - Music
4
301 - Sociology & anthropology
3
581 - Specific topics in natural history
3
612 - Human physiology
3
615 - Pharmacology & therapeutics
2
120 - Epistemology, causation & humankind
1
297 - Islam, Babism & Bahai Faith
1
350 - Public administration & military science
1
360 - Social problems & services; associations
1
550 - Earth sciences
1
657 - Accounting
1