Classification
363 - Other social problems & services
700 - The arts; fine & decorative arts
70
600 - Technology
65
620 - Engineering & allied operations
55
000 - Computer science, information & general works
51
333 - Economics of land & energy
45
900 - History & geography
42
580 - Plants (Botany)
32
330 - Economics
30
610 - Medicine & health
28
380 - Commerce, communications & transportation
24
140 - Specific philosophical schools
20
551 - Geology, hydrology & meteorology
18
576 - Genetics & evolution
16
414 - Phonology & phonetics
14
630 - Agriculture & related technologies
12
304 - Factors affecting social behavior
10
500 - Natural sciences & mathematics
10
581 - Specific topics in natural history
9
800 - Literature & rhetoric
9
320 - Political science
8
340 - Law
8
540 - Chemistry & allied sciences
8
658 - General management
5
720 - Architecture
5
300 - Social sciences
4
612 - Human physiology
4
370 - Education
3
530 - Physics
2
170 - Ethics
1
400 - Language
1
410 - Linguistics
1
615 - Pharmacology & therapeutics
1
657 - Accounting
1
770 - Photography, photographs & computer art
1