Classification
005 - Computer programming, programs & data
471
004 - Data processing & computer science
265
621 - Applied physics
130
003 - Systems
128
006 - Special computer methods
76
512 - Algebra
23
303 - Social processes
21
519 - Probabilities & applied mathematics
20
530 - Physics
14
511 - General principles of mathematics
12
381 - Commerce
9
518 - Numerical analysis
9
620 - Engineering & allied operations
8
670 - Manufacturing
8
371 - Schools & their activities; special education
7
515 - Analysis
5
610 - Medicine & health
5
160 - Logic
4
536 - Heat
4
500 - Natural sciences & mathematics
3
510 - Mathematics
3
534 - Sound & related vibrations
3
658 - General management
3
025 - Library operations
2
323 - Civil & political rights
2
330 - Economics
2
576 - Genetics & evolution
2
020 - Library & information sciences
1
120 - Epistemology, causation & humankind
1
300 - Social sciences
1
327 - International relations
1
338 - Production
1
410 - Linguistics
1
516 - Geometry
1
520 - Astronomy & allied sciences
1
537 - Electricity & electronics
1
570 - Life sciences; biology
1
571 - Physiology & related subjects
1
577 - Ecology
1
612 - Human physiology
1
910 - Geography & travel
1