Classification
510 - Mathematics
605
800 - Literature & rhetoric
519
410 - Linguistics
319
400 - Language
220
515 - Analysis
199
512 - Algebra
150
340 - Law
137
300 - Social sciences
102
519 - Probabilities & applied mathematics
86
530 - Physics
81
516 - Geometry
79
330 - Economics
78
700 - The arts; fine & decorative arts
73
306 - Culture & institutions
70
305 - Social groups
67
346 - Private law
65
320 - Political science
57
332 - Financial economics
57
514 - Topology
51
338 - Production
48
363 - Other social problems & services
36
511 - General principles of mathematics
33
302 - Social interaction
32
720 - Architecture
32
303 - Social processes
31
020 - Library & information sciences
28
100 - Philosophy & psychology
27
701 - Philosophy of fine & decorative arts
27
499 - Austronesian & other languages
26
940 - History of Europe
26
342 - Constitutional & administrative law
24
347 - Civil procedure & courts
23
513 - Arithmetic
22
517 - [Unassigned]
21
321 - Systems of governments & states
18
331 - Labor economics
18
709 - Historical, geographic & persons treatment
18
069 - Museum science
17
304 - Factors affecting social behavior
17
780 - Music
17
362 - Social welfare problems & services
16
620 - Engineering & allied operations
16
900 - History & geography
16
301 - Sociology & anthropology
15
531 - Classical mechanics; solid mechanics
15
570 - Life sciences; biology
15
658 - General management
15
080 - General collections
14
111 - Ontology
14
327 - International relations
14
more ...