Classification
000 - Computer science, information & general works
1
001 - Knowledge
3
003 - Systems
8
004 - Data processing & computer science
1
005 - Computer programming, programs & data
4
006 - Special computer methods
5
140 - Specific philosophical schools
1
150 - Psychology
1
155 - Differential & developmental psychology
1
158 - Applied psychology
2
170 - Ethics
1
174 - Occupational ethics
2
300 - Social sciences
22
301 - Sociology & anthropology
4
302 - Social interaction
9
306 - Culture & institutions
11
330 - Economics
15
331 - Labor economics
3
338 - Production
23
340 - Law
2
343 - Military, tax, trade & industrial law
5
344 - Labor, social, education & cultural law
1
346 - Private law
1
352 - General considerations of public administration
2
353 - Specific fields of public administration
11
355 - Military science
1
361 - Social problems & social welfare in general
2
362 - Social welfare problems & services
336
363 - Other social problems & services
1
368 - Insurance
1
374 - Adult education
2
381 - Commerce
4
384 - Communications; telecommunication
2
500 - Natural sciences & mathematics
8
510 - Mathematics
1
519 - Probabilities & applied mathematics
5
570 - Life sciences; biology
5
571 - Physiology & related subjects
2
580 - Plants (Botany)
1
600 - Technology
1
610 - Medicine & health
94
613 - Personal health & safety
16
614 - Incidence & prevention of disease
16
615 - Pharmacology & therapeutics
4
616 - Diseases
11
617 - Surgery & related medical specialties
10
618 - Gynecology, obstetrics, pediatrics & geriatrics
1
620 - Engineering & allied operations
4
621 - Applied physics
10
650 - Management & auxiliary services
2
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