Classification
000 - Computer science, information & general works
5
001 - Knowledge
5
003 - Systems
11
004 - Data processing & computer science
57
005 - Computer programming, programs & data
220
006 - Special computer methods
50
070 - News media, journalism & publishing
1
149 - Other philosophical systems
2
150 - Psychology
1
153 - Mental processes & intelligence
2
160 - Logic
3
221 - Old Testament (Tanakh)
1
300 - Social sciences
6
301 - Sociology & anthropology
1
302 - Social interaction
2
304 - Factors affecting social behavior
1
306 - Culture & institutions
3
330 - Economics
6
331 - Labor economics
7
332 - Financial economics
2
338 - Production
1
340 - Law
1
370 - Education
1
374 - Adult education
2
381 - Commerce
1
384 - Communications; telecommunication
2
398 - Folklore
1
400 - Language
2
401 - Philosophy & theory
8
407 - Education, research & related topics
1
410 - Linguistics
18
414 - Phonology & phonetics
2
415 - Grammar
7
418 - Standard usage & applied linguistics
1
420 - English & Old English
1
440 - Romance languages; French
2
490 - Other languages
1
495 - Languages of East & Southeast Asia
2
499 - Austronesian & other languages
3
500 - Natural sciences & mathematics
22
510 - Mathematics
5
511 - General principles of mathematics
5
515 - Analysis
1
518 - Numerical analysis
3
519 - Probabilities & applied mathematics
7
534 - Sound & related vibrations
2
537 - Electricity & electronics
1
542 - Techniques, equipment & materials
1
551 - Geology, hydrology & meteorology
1
577 - Ecology
1
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