Classification
005 - Computer programming, programs & data
1,218
040 - [Unassigned]
654
511 - General principles of mathematics
509
006 - Special computer methods
357
004 - Data processing & computer science
255
530 - Physics
247
501 - Philosophy & theory
151
624 - Civil engineering
135
160 - Logic
110
510 - Mathematics
100
620 - Engineering & allied operations
79
000 - Computer science, information & general works
73
520 - Astronomy & allied sciences
70
340 - Law
61
900 - History & geography
60
500 - Natural sciences & mathematics
58
512 - Algebra
57
600 - Technology
50
330 - Economics
49
518 - Numerical analysis
49
700 - The arts; fine & decorative arts
49
331 - Labor economics
42
333 - Economics of land & energy
42
621 - Applied physics
40
551 - Geology, hydrology & meteorology
38
515 - Analysis
36
658 - General management
34
320 - Political science
29
363 - Other social problems & services
26
003 - Systems
22
519 - Probabilities & applied mathematics
22
509 - Historical, geographic & persons treatment
21
380 - Commerce, communications & transportation
17
120 - Epistemology, causation & humankind
16
300 - Social sciences
16
100 - Philosophy & psychology
14
523 - Specific celestial bodies & phenomena
14
531 - Classical mechanics; solid mechanics
14
539 - Modern physics
13
670 - Manufacturing
13
745 - Decorative arts
13
370 - Education
12
540 - Chemistry & allied sciences
12
610 - Medicine & health
12
516 - Geometry
11
576 - Genetics & evolution
11
690 - Buildings
11
514 - Topology
10
628 - Sanitary & municipal engineering
9
140 - Specific philosophical schools
8
more ...