Classification
000 - Computer science, information & general works
81
001 - Knowledge
9
004 - Data processing & computer science
8
005 - Computer programming, programs & data
23
006 - Special computer methods
3
020 - Library & information sciences
4
022 - Administration of physical plant
1
025 - Library operations
1
027 - General libraries
1
333 - Economics of land & energy
1
340 - Law
8
344 - Labor, social, education & cultural law
2
352 - General considerations of public administration
8
363 - Other social problems & services
8
364 - Criminology
1
368 - Insurance
1
389 - Metrology & standardization
1
500 - Natural sciences & mathematics
1
502 - Miscellany
5
506 - Organizations & management
1
510 - Mathematics
2
516 - Geometry
1
519 - Probabilities & applied mathematics
1
520 - Astronomy & allied sciences
3
521 - Celestial mechanics
4
530 - Physics
24
531 - Classical mechanics; solid mechanics
2
533 - Gas mechanics
1
535 - Light & infrared & ultraviolet phenomena
2
536 - Heat
5
539 - Modern physics
6
540 - Chemistry & allied sciences
13
543 - Analytical chemistry
2
551 - Geology, hydrology & meteorology
1
570 - Life sciences; biology
4
573 - Specific physiological systems in animals
1
576 - Genetics & evolution
1
600 - Technology
21
602 - Miscellany
165
610 - Medicine & health
7
613 - Personal health & safety
3
616 - Diseases
1
617 - Surgery & related medical specialties
1
620 - Engineering & allied operations
213
621 - Applied physics
52
623 - Military & nautical engineering
1
624 - Civil engineering
76
625 - Engineering of railroads & roads
5
627 - Hydraulic engineering
2
628 - Sanitary & municipal engineering
13
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