Classification
510 - Mathematics
242
620 - Engineering & allied operations
51
520 - Astronomy & allied sciences
34
516 - Geometry
31
006 - Special computer methods
26
515 - Analysis
20
512 - Algebra
18
005 - Computer programming, programs & data
16
621 - Applied physics
16
519 - Probabilities & applied mathematics
15
004 - Data processing & computer science
13
530 - Physics
9
040 - [Unassigned]
8
500 - Natural sciences & mathematics
8
720 - Architecture
8
030 - General encyclopedic works
7
330 - Economics
6
514 - Topology
5
320 - Political science
4
624 - Civil engineering
4
001 - Knowledge
3
300 - Social sciences
3
511 - General principles of mathematics
3
518 - Numerical analysis
3
617 - Surgery & related medical specialties
3
333 - Economics of land & energy
2
370 - Education
2
420 - English & Old English
2
534 - Sound & related vibrations
2
540 - Chemistry & allied sciences
2
550 - Earth sciences
2
570 - Life sciences; biology
2
610 - Medicine & health
2
650 - Management & auxiliary services
2
745 - Decorative arts
2
820 - English & Old English literatures
2
910 - Geography & travel
2
000 - Computer science, information & general works
1
003 - Systems
1
050 - General serial publications
1
062 - Organizations in British Isles; in England
1
331 - Labor economics
1
350 - Public administration & military science
1
381 - Commerce
1
384 - Communications; telecommunication
1
507 - Education, research & related topics
1
509 - Historical, geographic & persons treatment
1
517 - [Unassigned]
1
522 - Techniques, equipment & materials
1
523 - Specific celestial bodies & phenomena
1
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