Classification
005 - Computer programming, programs & data
838
006 - Special computer methods
686
515 - Analysis
404
620 - Engineering & allied operations
401
004 - Data processing & computer science
356
621 - Applied physics
325
040 - [Unassigned]
303
512 - Algebra
282
300 - Social sciences
250
900 - History & geography
242
510 - Mathematics
231
511 - General principles of mathematics
227
519 - Probabilities & applied mathematics
227
330 - Economics
222
658 - General management
184
530 - Physics
180
003 - Systems
153
700 - The arts; fine & decorative arts
153
320 - Political science
151
500 - Natural sciences & mathematics
143
301 - Sociology & anthropology
126
518 - Numerical analysis
122
745 - Decorative arts
113
629 - Other branches of engineering
110
001 - Knowledge
104
306 - Culture & institutions
102
600 - Technology
98
200 - Religion
84
516 - Geometry
83
100 - Philosophy & psychology
82
800 - Literature & rhetoric
74
302 - Social interaction
72
340 - Law
72
304 - Factors affecting social behavior
70
616 - Diseases
70
000 - Computer science, information & general works
69
333 - Economics of land & energy
62
610 - Medicine & health
62
650 - Management & auxiliary services
62
160 - Logic
58
331 - Labor economics
55
514 - Topology
55
370 - Education
49
410 - Linguistics
49
305 - Social groups
48
400 - Language
47
501 - Philosophy & theory
47
670 - Manufacturing
47
741 - Drawing & drawings
47
551 - Geology, hydrology & meteorology
45
more ...