Classification
005 - Computer programming, programs & data
963
004 - Data processing & computer science
340
006 - Special computer methods
179
003 - Systems
133
621 - Applied physics
86
658 - General management
24
025 - Library operations
22
518 - Numerical analysis
20
512 - Algebra
18
519 - Probabilities & applied mathematics
17
511 - General principles of mathematics
16
530 - Physics
14
330 - Economics
10
000 - Computer science, information & general works
9
650 - Management & auxiliary services
9
570 - Life sciences; biology
8
303 - Social processes
6
510 - Mathematics
6
610 - Medicine & health
6
620 - Engineering & allied operations
5
910 - Geography & travel
5
323 - Civil & political rights
3
515 - Analysis
3
551 - Geology, hydrology & meteorology
3
572 - Biochemistry
3
020 - Library & information sciences
2
320 - Political science
2
333 - Economics of land & energy
2
338 - Production
2
371 - Schools & their activities; special education
2
374 - Adult education
2
400 - Language
2
612 - Human physiology
2
616 - Diseases
2
160 - Logic
1
300 - Social sciences
1
302 - Social interaction
1
344 - Labor, social, education & cultural law
1
363 - Other social problems & services
1
410 - Linguistics
1
500 - Natural sciences & mathematics
1
502 - Miscellany
1
516 - Geometry
1
520 - Astronomy & allied sciences
1
534 - Sound & related vibrations
1
550 - Earth sciences
1
601 - Philosophy & theory
1
624 - Civil engineering
1
629 - Other branches of engineering
1
670 - Manufacturing
1