Classification
333 - Economics of land & energy
620 - Engineering & allied operations
600 - Technology
915
900 - History & geography
659
700 - The arts; fine & decorative arts
506
363 - Other social problems & services
290
330 - Economics
252
000 - Computer science, information & general works
235
380 - Commerce, communications & transportation
203
610 - Medicine & health
141
580 - Plants (Botany)
139
630 - Agriculture & related technologies
109
576 - Genetics & evolution
85
500 - Natural sciences & mathematics
83
140 - Specific philosophical schools
81
551 - Geology, hydrology & meteorology
77
540 - Chemistry & allied sciences
74
320 - Political science
67
370 - Education
53
720 - Architecture
52
581 - Specific topics in natural history
39
530 - Physics
36
340 - Law
35
414 - Phonology & phonetics
35
800 - Literature & rhetoric
31
300 - Social sciences
26
658 - General management
26
100 - Philosophy & psychology
17
621 - Applied physics
17
304 - Factors affecting social behavior
16
400 - Language
11
170 - Ethics
9
612 - Human physiology
7
657 - Accounting
7
120 - Epistemology, causation & humankind
4
332 - Financial economics
4
361 - Social problems & social welfare in general
4
550 - Earth sciences
4
770 - Photography, photographs & computer art
4
200 - Religion
3
301 - Sociology & anthropology
3
410 - Linguistics
3
745 - Decorative arts
3
780 - Music
3
160 - Logic
2
297 - Islam, Babism & Bahai Faith
2
350 - Public administration & military science
2
510 - Mathematics
2
791 - Public performances
2
331 - Labor economics
1
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