Classification
363 - Other social problems & services
610 - Medicine & health
72
000 - Computer science, information & general works
67
700 - The arts; fine & decorative arts
59
580 - Plants (Botany)
46
333 - Economics of land & energy
42
600 - Technology
35
620 - Engineering & allied operations
26
140 - Specific philosophical schools
25
380 - Commerce, communications & transportation
21
330 - Economics
17
540 - Chemistry & allied sciences
17
576 - Genetics & evolution
15
304 - Factors affecting social behavior
13
581 - Specific topics in natural history
12
630 - Agriculture & related technologies
12
414 - Phonology & phonetics
11
900 - History & geography
10
551 - Geology, hydrology & meteorology
9
612 - Human physiology
9
500 - Natural sciences & mathematics
6
615 - Pharmacology & therapeutics
6
658 - General management
5
300 - Social sciences
4
320 - Political science
4
361 - Social problems & social welfare in general
3
720 - Architecture
3
800 - Literature & rhetoric
3
370 - Education
2
590 - Animals (Zoology)
2
100 - Philosophy & psychology
1
340 - Law
1
520 - Astronomy & allied sciences
1
530 - Physics
1