Classification
304 - Factors affecting social behavior
333 - Economics of land & energy
700 - The arts; fine & decorative arts
140 - Specific philosophical schools
18
610 - Medicine & health
17
330 - Economics
16
000 - Computer science, information & general works
15
363 - Other social problems & services
15
380 - Commerce, communications & transportation
13
600 - Technology
13
320 - Political science
10
580 - Plants (Botany)
8
370 - Education
6
551 - Geology, hydrology & meteorology
6
340 - Law
5
620 - Engineering & allied operations
5
630 - Agriculture & related technologies
5
540 - Chemistry & allied sciences
4
581 - Specific topics in natural history
4
900 - History & geography
4
301 - Sociology & anthropology
3
400 - Language
3
414 - Phonology & phonetics
3
530 - Physics
3
576 - Genetics & evolution
3
170 - Ethics
2
200 - Religion
2
300 - Social sciences
2
361 - Social problems & social welfare in general
2
800 - Literature & rhetoric
2
100 - Philosophy & psychology
1
120 - Epistemology, causation & humankind
1
297 - Islam, Babism & Bahai Faith
1
410 - Linguistics
1
500 - Natural sciences & mathematics
1
520 - Astronomy & allied sciences
1
615 - Pharmacology & therapeutics
1
720 - Architecture
1