Classification
140 - Specific philosophical schools
370 - Education
700 - The arts; fine & decorative arts
333 - Economics of land & energy
26
610 - Medicine & health
24
000 - Computer science, information & general works
20
600 - Technology
18
363 - Other social problems & services
17
100 - Philosophy & psychology
16
330 - Economics
16
380 - Commerce, communications & transportation
15
900 - History & geography
14
320 - Political science
13
620 - Engineering & allied operations
13
300 - Social sciences
12
340 - Law
9
400 - Language
8
551 - Geology, hydrology & meteorology
8
720 - Architecture
7
200 - Religion
6
301 - Sociology & anthropology
5
410 - Linguistics
5
500 - Natural sciences & mathematics
5
658 - General management
5
304 - Factors affecting social behavior
4
530 - Physics
4
576 - Genetics & evolution
4
170 - Ethics
3
770 - Photography, photographs & computer art
3
780 - Music
3
800 - Literature & rhetoric
3
581 - Specific topics in natural history
2
630 - Agriculture & related technologies
2
120 - Epistemology, causation & humankind
1
160 - Logic
1
297 - Islam, Babism & Bahai Faith
1
360 - Social problems & services; associations
1
414 - Phonology & phonetics
1
580 - Plants (Botany)
1