Classification
000 - Computer science, information & general works
6
001 - Knowledge
6
003 - Systems
23
004 - Data processing & computer science
27
005 - Computer programming, programs & data
99
006 - Special computer methods
14
040 - [Unassigned]
20
100 - Philosophy & psychology
1
160 - Logic
2
189 - Medieval western philosophy
1
300 - Social sciences
6
330 - Economics
9
331 - Labor economics
4
332 - Financial economics
2
333 - Economics of land & energy
2
338 - Production
3
340 - Law
1
342 - Constitutional & administrative law
1
370 - Education
1
380 - Commerce, communications & transportation
1
384 - Communications; telecommunication
1
500 - Natural sciences & mathematics
17
501 - Philosophy & theory
5
509 - Historical, geographic & persons treatment
1
510 - Mathematics
182
511 - General principles of mathematics
130
512 - Algebra
909
514 - Topology
21
515 - Analysis
152
516 - Geometry
137
518 - Numerical analysis
39
519 - Probabilities & applied mathematics
47
520 - Astronomy & allied sciences
1
530 - Physics
28
531 - Classical mechanics; solid mechanics
1
532 - Fluid mechanics; liquid mechanics
1
534 - Sound & related vibrations
1
540 - Chemistry & allied sciences
1
541 - Physical chemistry
2
546 - Inorganic chemistry
1
548 - Crystallography
1
572 - Biochemistry
1
576 - Genetics & evolution
3
577 - Ecology
1
600 - Technology
3
610 - Medicine & health
1
616 - Diseases
1
620 - Engineering & allied operations
10
621 - Applied physics
14
658 - General management
3
more ...