Classification
576 - Genetics & evolution
500 - Natural sciences & mathematics
123
610 - Medicine & health
38
580 - Plants (Botany)
35
700 - The arts; fine & decorative arts
32
363 - Other social problems & services
30
000 - Computer science, information & general works
29
581 - Specific topics in natural history
29
600 - Technology
28
333 - Economics of land & energy
27
900 - History & geography
27
330 - Economics
24
140 - Specific philosophical schools
20
620 - Engineering & allied operations
18
320 - Political science
17
380 - Commerce, communications & transportation
15
100 - Philosophy & psychology
11
400 - Language
7
540 - Chemistry & allied sciences
6
551 - Geology, hydrology & meteorology
6
530 - Physics
5
658 - General management
5
370 - Education
4
720 - Architecture
4
301 - Sociology & anthropology
3
304 - Factors affecting social behavior
3
340 - Law
3
630 - Agriculture & related technologies
3
800 - Literature & rhetoric
3
300 - Social sciences
2
414 - Phonology & phonetics
2
120 - Epistemology, causation & humankind
1
170 - Ethics
1
297 - Islam, Babism & Bahai Faith
1
579 - Microorganisms, fungi & algae
1
612 - Human physiology
1
791 - Public performances
1
920 - Biography, genealogy & insignia
1