Classification
610 - Medicine & health
700 - The arts; fine & decorative arts
31
140 - Specific philosophical schools
22
000 - Computer science, information & general works
17
600 - Technology
15
330 - Economics
13
576 - Genetics & evolution
12
380 - Commerce, communications & transportation
11
300 - Social sciences
10
333 - Economics of land & energy
10
363 - Other social problems & services
10
304 - Factors affecting social behavior
8
370 - Education
8
551 - Geology, hydrology & meteorology
7
500 - Natural sciences & mathematics
5
540 - Chemistry & allied sciences
5
580 - Plants (Botany)
5
615 - Pharmacology & therapeutics
5
658 - General management
5
900 - History & geography
5
100 - Philosophy & psychology
4
170 - Ethics
4
320 - Political science
4
301 - Sociology & anthropology
3
620 - Engineering & allied operations
3
612 - Human physiology
2
360 - Social problems & services; associations
1
361 - Social problems & social welfare in general
1
364 - Criminology
1
410 - Linguistics
1
414 - Phonology & phonetics
1
530 - Physics
1
581 - Specific topics in natural history
1
590 - Animals (Zoology)
1
618 - Gynecology, obstetrics, pediatrics & geriatrics
1
630 - Agriculture & related technologies
1
780 - Music
1
800 - Literature & rhetoric
1