Classification
551 - Geology, hydrology & meteorology
363 - Other social problems & services
96
700 - The arts; fine & decorative arts
75
333 - Economics of land & energy
74
330 - Economics
63
000 - Computer science, information & general works
53
320 - Political science
51
600 - Technology
43
620 - Engineering & allied operations
33
380 - Commerce, communications & transportation
32
900 - History & geography
27
610 - Medicine & health
26
140 - Specific philosophical schools
25
630 - Agriculture & related technologies
20
370 - Education
17
580 - Plants (Botany)
15
300 - Social sciences
14
581 - Specific topics in natural history
12
720 - Architecture
12
500 - Natural sciences & mathematics
10
304 - Factors affecting social behavior
8
658 - General management
7
800 - Literature & rhetoric
7
576 - Genetics & evolution
6
340 - Law
5
540 - Chemistry & allied sciences
5
414 - Phonology & phonetics
4
530 - Physics
4
100 - Philosophy & psychology
3
400 - Language
3
550 - Earth sciences
3
170 - Ethics
2
350 - Public administration & military science
2
360 - Social problems & services; associations
2
361 - Social problems & social welfare in general
2
120 - Epistemology, causation & humankind
1
200 - Religion
1
297 - Islam, Babism & Bahai Faith
1
301 - Sociology & anthropology
1
590 - Animals (Zoology)
1
657 - Accounting
1
770 - Photography, photographs & computer art
1