Classification
000 - Computer science, information & general works
2
001 - Knowledge
1
003 - Systems
1
005 - Computer programming, programs & data
3
006 - Special computer methods
3
040 - [Unassigned]
1
100 - Philosophy & psychology
6
120 - Epistemology, causation & humankind
1
140 - Specific philosophical schools
2
160 - Logic
1
179 - Other ethical norms
1
200 - Religion
11
297 - Islam, Babism & Bahai Faith
15
300 - Social sciences
11
301 - Sociology & anthropology
6
302 - Social interaction
1
304 - Factors affecting social behavior
2
305 - Social groups
1
306 - Culture & institutions
5
320 - Political science
24
322 - Relation of state to organized groups
1
327 - International relations
1
330 - Economics
5
333 - Economics of land & energy
4
338 - Production
4
340 - Law
8
341 - Law of nations
2
343 - Military, tax, trade & industrial law
3
345 - Criminal law
2
351 - Public administration
1
363 - Other social problems & services
2
364 - Criminology
3
370 - Education
3
378 - Higher education
1
380 - Commerce, communications & transportation
3
400 - Language
6
410 - Linguistics
4
490 - Other languages
2
492 - Afro-Asiatic languages; Semitic languages
1
499 - Austronesian & other languages
1
500 - Natural sciences & mathematics
3
501 - Philosophy & theory
1
509 - Historical, geographic & persons treatment
1
510 - Mathematics
1
519 - Probabilities & applied mathematics
1
520 - Astronomy & allied sciences
2
547 - Organic chemistry
1
551 - Geology, hydrology & meteorology
2
570 - Life sciences; biology
1
572 - Biochemistry
1
more ...