Classification
610 - Medicine & health
700 - The arts; fine & decorative arts
28
600 - Technology
20
140 - Specific philosophical schools
19
580 - Plants (Botany)
12
363 - Other social problems & services
11
000 - Computer science, information & general works
9
620 - Engineering & allied operations
9
333 - Economics of land & energy
7
900 - History & geography
7
630 - Agriculture & related technologies
5
612 - Human physiology
4
330 - Economics
3
380 - Commerce, communications & transportation
3
340 - Law
2
414 - Phonology & phonetics
2
540 - Chemistry & allied sciences
2
304 - Factors affecting social behavior
1
320 - Political science
1
350 - Public administration & military science
1
370 - Education
1
400 - Language
1
500 - Natural sciences & mathematics
1
581 - Specific topics in natural history
1
615 - Pharmacology & therapeutics
1
720 - Architecture
1
780 - Music
1