Classification
370 - Education
610 - Medicine & health
333 - Economics of land & energy
13
700 - The arts; fine & decorative arts
13
600 - Technology
11
330 - Economics
10
363 - Other social problems & services
10
380 - Commerce, communications & transportation
8
000 - Computer science, information & general works
6
100 - Philosophy & psychology
6
140 - Specific philosophical schools
6
300 - Social sciences
6
320 - Political science
6
658 - General management
5
900 - History & geography
5
301 - Sociology & anthropology
3
551 - Geology, hydrology & meteorology
3
580 - Plants (Botany)
3
620 - Engineering & allied operations
3
780 - Music
3
304 - Factors affecting social behavior
2
576 - Genetics & evolution
2
170 - Ethics
1
200 - Religion
1
340 - Law
1
360 - Social problems & services; associations
1
400 - Language
1
410 - Linguistics
1
414 - Phonology & phonetics
1
630 - Agriculture & related technologies
1
800 - Literature & rhetoric
1