Classification
610 - Medicine & health
363 - Other social problems & services
66
581 - Specific topics in natural history
60
000 - Computer science, information & general works
56
700 - The arts; fine & decorative arts
54
333 - Economics of land & energy
49
140 - Specific philosophical schools
39
330 - Economics
37
600 - Technology
35
580 - Plants (Botany)
33
551 - Geology, hydrology & meteorology
32
320 - Political science
22
380 - Commerce, communications & transportation
21
620 - Engineering & allied operations
19
630 - Agriculture & related technologies
18
900 - History & geography
18
370 - Education
17
576 - Genetics & evolution
16
540 - Chemistry & allied sciences
15
304 - Factors affecting social behavior
14
100 - Philosophy & psychology
9
500 - Natural sciences & mathematics
9
658 - General management
8
340 - Law
7
414 - Phonology & phonetics
6
200 - Religion
5
300 - Social sciences
5
612 - Human physiology
5
800 - Literature & rhetoric
5
301 - Sociology & anthropology
4
170 - Ethics
3
520 - Astronomy & allied sciences
3
530 - Physics
2
550 - Earth sciences
2
615 - Pharmacology & therapeutics
2
720 - Architecture
2
160 - Logic
1
350 - Public administration & military science
1
360 - Social problems & services; associations
1
361 - Social problems & social welfare in general
1
364 - Criminology
1
398 - Folklore
1
410 - Linguistics
1