Classification
629 - Other branches of engineering
240
621 - Applied physics
185
620 - Engineering & allied operations
78
670 - Manufacturing
66
658 - General management
44
006 - Special computer methods
33
003 - Systems
29
600 - Technology
24
700 - The arts; fine & decorative arts
20
005 - Computer programming, programs & data
18
900 - History & geography
18
610 - Medicine & health
11
519 - Probabilities & applied mathematics
10
140 - Specific philosophical schools
9
330 - Economics
7
333 - Economics of land & energy
7
500 - Natural sciences & mathematics
7
000 - Computer science, information & general works
5
363 - Other social problems & services
5
004 - Data processing & computer science
4
380 - Commerce, communications & transportation
4
530 - Physics
4
630 - Agriculture & related technologies
4
650 - Management & auxiliary services
4
338 - Production
3
370 - Education
3
400 - Language
3
624 - Civil engineering
3
690 - Buildings
3
745 - Decorative arts
3
320 - Political science
2
414 - Phonology & phonetics
2
518 - Numerical analysis
2
540 - Chemistry & allied sciences
2
543 - Analytical chemistry
2
628 - Sanitary & municipal engineering
2
660 - Chemical engineering
2
720 - Architecture
2
790 - Recreational & performing arts
2
150 - Psychology
1
340 - Law
1
515 - Analysis
1
520 - Astronomy & allied sciences
1
534 - Sound & related vibrations
1
537 - Electricity & electronics
1
570 - Life sciences; biology
1
571 - Physiology & related subjects
1
573 - Specific physiological systems in animals
1
576 - Genetics & evolution
1
580 - Plants (Botany)
1
more ...