Classification
000 - Computer science, information & general works
330 - Economics
363 - Other social problems & services
333 - Economics of land & energy
130
700 - The arts; fine & decorative arts
123
600 - Technology
76
551 - Geology, hydrology & meteorology
66
320 - Political science
60
380 - Commerce, communications & transportation
59
610 - Medicine & health
50
140 - Specific philosophical schools
48
620 - Engineering & allied operations
43
900 - History & geography
43
580 - Plants (Botany)
35
630 - Agriculture & related technologies
33
658 - General management
29
576 - Genetics & evolution
24
581 - Specific topics in natural history
24
370 - Education
18
540 - Chemistry & allied sciences
17
720 - Architecture
17
340 - Law
16
800 - Literature & rhetoric
16
304 - Factors affecting social behavior
13
500 - Natural sciences & mathematics
12
414 - Phonology & phonetics
8
530 - Physics
8
657 - Accounting
8
400 - Language
7
410 - Linguistics
6
100 - Philosophy & psychology
5
300 - Social sciences
5
361 - Social problems & social welfare in general
5
200 - Religion
4
301 - Sociology & anthropology
4
297 - Islam, Babism & Bahai Faith
3
550 - Earth sciences
3
170 - Ethics
2
612 - Human physiology
2
160 - Logic
1
520 - Astronomy & allied sciences
1
590 - Animals (Zoology)
1