Classification
140 - Specific philosophical schools
300 - Social sciences
620 - Engineering & allied operations
363 - Other social problems & services
11
600 - Technology
11
700 - The arts; fine & decorative arts
11
333 - Economics of land & energy
9
900 - History & geography
8
576 - Genetics & evolution
7
320 - Political science
6
340 - Law
6
380 - Commerce, communications & transportation
6
551 - Geology, hydrology & meteorology
6
610 - Medicine & health
6
330 - Economics
5
370 - Education
5
500 - Natural sciences & mathematics
5
580 - Plants (Botany)
5
630 - Agriculture & related technologies
5
000 - Computer science, information & general works
4
581 - Specific topics in natural history
4
720 - Architecture
4
800 - Literature & rhetoric
4
301 - Sociology & anthropology
3
414 - Phonology & phonetics
3
540 - Chemistry & allied sciences
3
612 - Human physiology
3
100 - Philosophy & psychology
2
170 - Ethics
2
400 - Language
2
200 - Religion
1
297 - Islam, Babism & Bahai Faith
1
410 - Linguistics
1
780 - Music
1