Classification
363 - Other social problems & services
700 - The arts; fine & decorative arts
600 - Technology
385
333 - Economics of land & energy
350
000 - Computer science, information & general works
324
620 - Engineering & allied operations
295
330 - Economics
289
900 - History & geography
260
610 - Medicine & health
232
320 - Political science
188
140 - Specific philosophical schools
168
551 - Geology, hydrology & meteorology
151
380 - Commerce, communications & transportation
147
580 - Plants (Botany)
120
630 - Agriculture & related technologies
91
581 - Specific topics in natural history
85
370 - Education
79
540 - Chemistry & allied sciences
75
300 - Social sciences
71
576 - Genetics & evolution
70
720 - Architecture
66
340 - Law
58
500 - Natural sciences & mathematics
53
100 - Philosophy & psychology
51
414 - Phonology & phonetics
49
800 - Literature & rhetoric
45
658 - General management
43
301 - Sociology & anthropology
34
304 - Factors affecting social behavior
32
200 - Religion
29
400 - Language
26
170 - Ethics
24
530 - Physics
22
612 - Human physiology
19
410 - Linguistics
10
615 - Pharmacology & therapeutics
8
297 - Islam, Babism & Bahai Faith
7
361 - Social problems & social welfare in general
7
770 - Photography, photographs & computer art
7
780 - Music
7
550 - Earth sciences
6
120 - Epistemology, causation & humankind
5
657 - Accounting
5
520 - Astronomy & allied sciences
4
590 - Animals (Zoology)
3
650 - Management & auxiliary services
3
160 - Logic
2
350 - Public administration & military science
2
628 - Sanitary & municipal engineering
2
791 - Public performances
2
more ...