Classification
142 - Critical philosophy
10
180 - Ancient, medieval & eastern philosophy
9
510 - Mathematics
9
109 - Historical & collected persons treatment
6
006 - Special computer methods
5
128 - Humankind
5
320 - Political science
5
530 - Physics
5
160 - Logic
4
170 - Ethics
4
501 - Philosophy & theory
4
150 - Psychology
3
306 - Culture & institutions
3
340 - Law
3
610 - Medicine & health
3
620 - Engineering & allied operations
3
658 - General management
3
700 - The arts; fine & decorative arts
3
808 - Rhetoric & collections of literature
3
100 - Philosophy & psychology
2
120 - Epistemology, causation & humankind
2
210 - Philosophy & theory of religion
2
300 - Social sciences
2
303 - Social processes
2
330 - Economics
2
370 - Education
2
511 - General principles of mathematics
2
516 - Geometry
2
520 - Astronomy & allied sciences
2
001 - Knowledge
1
003 - Systems
1
005 - Computer programming, programs & data
1
110 - Metaphysics
1
113 - Cosmology
1
126 - The self
1
140 - Specific philosophical schools
1
141 - Idealism & related systems
1
155 - Differential & developmental psychology
1
189 - Medieval western philosophy
1
190 - Modern western philosophy
1
296 - Judaism
1
301 - Sociology & anthropology
1
302 - Social interaction
1
304 - Factors affecting social behavior
1
343 - Military, tax, trade & industrial law
1
371 - Schools & their activities; special education
1
500 - Natural sciences & mathematics
1
507 - Education, research & related topics
1
515 - Analysis
1
523 - Specific celestial bodies & phenomena
1
more ...