Classification
610 - Medicine & health
149
700 - The arts; fine & decorative arts
78
333 - Economics of land & energy
51
363 - Other social problems & services
34
370 - Education
33
000 - Computer science, information & general works
28
140 - Specific philosophical schools
28
380 - Commerce, communications & transportation
28
100 - Philosophy & psychology
26
330 - Economics
25
600 - Technology
25
612 - Human physiology
20
580 - Plants (Botany)
17
900 - History & geography
16
620 - Engineering & allied operations
13
320 - Political science
12
551 - Geology, hydrology & meteorology
10
304 - Factors affecting social behavior
9
581 - Specific topics in natural history
8
340 - Law
7
615 - Pharmacology & therapeutics
7
658 - General management
7
361 - Social problems & social welfare in general
5
500 - Natural sciences & mathematics
5
800 - Literature & rhetoric
5
170 - Ethics
4
414 - Phonology & phonetics
3
576 - Genetics & evolution
3
630 - Agriculture & related technologies
3
720 - Architecture
3
200 - Religion
2
540 - Chemistry & allied sciences
2
780 - Music
2
296 - Judaism
1
364 - Criminology
1
400 - Language
1
550 - Earth sciences
1
770 - Photography, photographs & computer art
1