Classification
700 - The arts; fine & decorative arts
000 - Computer science, information & general works
738
600 - Technology
642
900 - History & geography
564
363 - Other social problems & services
496
333 - Economics of land & energy
471
610 - Medicine & health
446
620 - Engineering & allied operations
430
320 - Political science
417
300 - Social sciences
369
330 - Economics
351
140 - Specific philosophical schools
312
500 - Natural sciences & mathematics
282
400 - Language
252
580 - Plants (Botany)
226
380 - Commerce, communications & transportation
223
410 - Linguistics
168
576 - Genetics & evolution
167
370 - Education
165
100 - Philosophy & psychology
162
551 - Geology, hydrology & meteorology
141
630 - Agriculture & related technologies
136
540 - Chemistry & allied sciences
134
340 - Law
111
581 - Specific topics in natural history
106
720 - Architecture
103
800 - Literature & rhetoric
92
301 - Sociology & anthropology
91
530 - Physics
89
414 - Phonology & phonetics
73
200 - Religion
72
304 - Factors affecting social behavior
57
612 - Human physiology
55
658 - General management
54
170 - Ethics
50
780 - Music
48
770 - Photography, photographs & computer art
30
361 - Social problems & social welfare in general
26
615 - Pharmacology & therapeutics
20
120 - Epistemology, causation & humankind
19
297 - Islam, Babism & Bahai Faith
15
520 - Astronomy & allied sciences
15
791 - Public performances
12
160 - Logic
11
590 - Animals (Zoology)
9
350 - Public administration & military science
8
657 - Accounting
8
550 - Earth sciences
7
360 - Social problems & services; associations
6
006 - Special computer methods
5
more ...