Classification
610 - Medicine & health
50
000 - Computer science, information & general works
35
700 - The arts; fine & decorative arts
31
900 - History & geography
31
330 - Economics
30
333 - Economics of land & energy
28
320 - Political science
27
300 - Social sciences
25
363 - Other social problems & services
22
140 - Specific philosophical schools
21
370 - Education
19
380 - Commerce, communications & transportation
14
580 - Plants (Botany)
14
576 - Genetics & evolution
12
600 - Technology
12
620 - Engineering & allied operations
12
551 - Geology, hydrology & meteorology
11
100 - Philosophy & psychology
10
581 - Specific topics in natural history
10
340 - Law
9
301 - Sociology & anthropology
7
630 - Agriculture & related technologies
7
304 - Factors affecting social behavior
6
414 - Phonology & phonetics
6
500 - Natural sciences & mathematics
6
612 - Human physiology
6
540 - Chemistry & allied sciences
4
350 - Public administration & military science
3
361 - Social problems & social welfare in general
3
400 - Language
3
200 - Religion
2
520 - Astronomy & allied sciences
2
658 - General management
2
720 - Architecture
2
800 - Literature & rhetoric
2
170 - Ethics
1
364 - Criminology
1
398 - Folklore
1
410 - Linguistics
1
615 - Pharmacology & therapeutics
1
780 - Music
1