Classification
000 - Computer science, information & general works
4
004 - Data processing & computer science
12
005 - Computer programming, programs & data
8
006 - Special computer methods
10
025 - Library operations
1
100 - Philosophy & psychology
18
120 - Epistemology, causation & humankind
3
128 - Humankind
5
140 - Specific philosophical schools
2
142 - Critical philosophy
1
150 - Psychology
1
152 - Perception, movement, emotions & drives
1
153 - Mental processes & intelligence
3
155 - Differential & developmental psychology
1
158 - Applied psychology
1
180 - Ancient, medieval & eastern philosophy
1
300 - Social sciences
1
301 - Sociology & anthropology
3
302 - Social interaction
1
303 - Social processes
1
305 - Social groups
1
306 - Culture & institutions
2
330 - Economics
2
333 - Economics of land & energy
5
363 - Other social problems & services
2
370 - Education
8
371 - Schools & their activities; special education
1
380 - Commerce, communications & transportation
2
381 - Commerce
1
400 - Language
8
401 - Philosophy & theory
1
410 - Linguistics
3
415 - Grammar
1
418 - Standard usage & applied linguistics
2
500 - Natural sciences & mathematics
3
507 - Education, research & related topics
1
510 - Mathematics
2
519 - Probabilities & applied mathematics
1
530 - Physics
1
570 - Life sciences; biology
3
576 - Genetics & evolution
3
581 - Specific topics in natural history
2
600 - Technology
2
610 - Medicine & health
3
612 - Human physiology
3
616 - Diseases
2
620 - Engineering & allied operations
1
621 - Applied physics
1
629 - Other branches of engineering
3
658 - General management
4
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