Classification
576 - Genetics & evolution
380 - Commerce, communications & transportation
74
700 - The arts; fine & decorative arts
45
333 - Economics of land & energy
44
600 - Technology
37
000 - Computer science, information & general works
34
620 - Engineering & allied operations
32
363 - Other social problems & services
25
900 - History & geography
25
500 - Natural sciences & mathematics
18
610 - Medicine & health
18
140 - Specific philosophical schools
17
330 - Economics
17
320 - Political science
13
340 - Law
10
304 - Factors affecting social behavior
8
540 - Chemistry & allied sciences
8
580 - Plants (Botany)
8
414 - Phonology & phonetics
7
551 - Geology, hydrology & meteorology
7
581 - Specific topics in natural history
7
658 - General management
7
530 - Physics
5
720 - Architecture
5
612 - Human physiology
4
800 - Literature & rhetoric
4
300 - Social sciences
3
370 - Education
3
410 - Linguistics
3
100 - Philosophy & psychology
2
650 - Management & auxiliary services
2
615 - Pharmacology & therapeutics
1
630 - Agriculture & related technologies
1
657 - Accounting
1
770 - Photography, photographs & computer art
1