Classification
600 - Technology
610 - Medicine & health
700 - The arts; fine & decorative arts
25
140 - Specific philosophical schools
14
363 - Other social problems & services
13
330 - Economics
10
000 - Computer science, information & general works
9
333 - Economics of land & energy
8
370 - Education
8
380 - Commerce, communications & transportation
8
620 - Engineering & allied operations
7
900 - History & geography
7
580 - Plants (Botany)
5
100 - Philosophy & psychology
3
170 - Ethics
3
304 - Factors affecting social behavior
3
320 - Political science
3
340 - Law
3
400 - Language
2
780 - Music
2
800 - Literature & rhetoric
2
200 - Religion
1
350 - Public administration & military science
1
361 - Social problems & social welfare in general
1
500 - Natural sciences & mathematics
1
576 - Genetics & evolution
1
581 - Specific topics in natural history
1
612 - Human physiology
1
630 - Agriculture & related technologies
1