Classification
000 - Computer science, information & general works
8
001 - Knowledge
1
003 - Systems
26
004 - Data processing & computer science
459
005 - Computer programming, programs & data
141
006 - Special computer methods
357
025 - Library operations
1
040 - [Unassigned]
53
153 - Mental processes & intelligence
1
303 - Social processes
1
330 - Economics
3
331 - Labor economics
8
338 - Production
2
374 - Adult education
2
380 - Commerce, communications & transportation
2
384 - Communications; telecommunication
3
401 - Philosophy & theory
5
500 - Natural sciences & mathematics
11
510 - Mathematics
1
511 - General principles of mathematics
1
512 - Algebra
6
518 - Numerical analysis
10
519 - Probabilities & applied mathematics
4
530 - Physics
4
534 - Sound & related vibrations
2
537 - Electricity & electronics
1
541 - Physical chemistry
2
542 - Techniques, equipment & materials
2
551 - Geology, hydrology & meteorology
1
570 - Life sciences; biology
2
572 - Biochemistry
1
600 - Technology
4
610 - Medicine & health
1
612 - Human physiology
1
620 - Engineering & allied operations
16
621 - Applied physics
131
628 - Sanitary & municipal engineering
1
629 - Other branches of engineering
8
630 - Agriculture & related technologies
1
650 - Management & auxiliary services
2
658 - General management
12
670 - Manufacturing
11
681 - Precision instruments & other devices
1
700 - The arts; fine & decorative arts
1
720 - Architecture
2
745 - Decorative arts
17
794 - Indoor games of skill
2
796 - Athletic & outdoor sports & games
1
800 - Literature & rhetoric
1
900 - History & geography
1