Classification
006 - Special computer methods
663
005 - Computer programming, programs & data
182
004 - Data processing & computer science
120
518 - Numerical analysis
78
040 - [Unassigned]
50
003 - Systems
27
621 - Applied physics
11
794 - Indoor games of skill
11
516 - Geometry
10
519 - Probabilities & applied mathematics
10
001 - Knowledge
9
025 - Library operations
7
570 - Life sciences; biology
7
014 - Bibliographies of anonymous & pseudonymous works
5
511 - General principles of mathematics
4
616 - Diseases
4
670 - Manufacturing
4
371 - Schools & their activities; special education
3
510 - Mathematics
3
620 - Engineering & allied operations
3
300 - Social sciences
2
550 - Earth sciences
2
612 - Human physiology
2
741 - Drawing & drawings
2
526 - Mathematical geography
1
530 - Physics
1
580 - Plants (Botany)
1
590 - Animals (Zoology)
1
610 - Medicine & health
1
629 - Other branches of engineering
1
658 - General management
1
660 - Chemical engineering
1
910 - Geography & travel
1