Classification
000 - Computer science, information & general works
1
001 - Knowledge
4
003 - Systems
16
004 - Data processing & computer science
176
005 - Computer programming, programs & data
54
006 - Special computer methods
95
025 - Library operations
2
300 - Social sciences
3
331 - Labor economics
5
333 - Economics of land & energy
4
338 - Production
2
370 - Education
2
380 - Commerce, communications & transportation
1
384 - Communications; telecommunication
2
400 - Language
1
500 - Natural sciences & mathematics
15
510 - Mathematics
4
511 - General principles of mathematics
7
512 - Algebra
2
515 - Analysis
4
518 - Numerical analysis
9
519 - Probabilities & applied mathematics
12
523 - Specific celestial bodies & phenomena
1
530 - Physics
5
534 - Sound & related vibrations
5
535 - Light & infrared & ultraviolet phenomena
1
537 - Electricity & electronics
3
539 - Modern physics
2
541 - Physical chemistry
3
570 - Life sciences; biology
1
580 - Plants (Botany)
1
600 - Technology
361
610 - Medicine & health
2
612 - Human physiology
1
616 - Diseases
1
620 - Engineering & allied operations
69
621 - Applied physics
447
629 - Other branches of engineering
2
658 - General management
8
660 - Chemical engineering
2
661 - Industrial chemicals
1
670 - Manufacturing
18
690 - Buildings
1
700 - The arts; fine & decorative arts
1
745 - Decorative arts
37
900 - History & geography
1