Classification
620 - Engineering & allied operations
98
600 - Technology
55
700 - The arts; fine & decorative arts
55
621 - Applied physics
49
333 - Economics of land & energy
36
000 - Computer science, information & general works
29
900 - History & geography
29
530 - Physics
21
500 - Natural sciences & mathematics
19
340 - Law
13
380 - Commerce, communications & transportation
12
540 - Chemistry & allied sciences
12
610 - Medicine & health
11
670 - Manufacturing
11
003 - Systems
9
660 - Chemical engineering
8
330 - Economics
7
363 - Other social problems & services
6
519 - Probabilities & applied mathematics
5
572 - Biochemistry
5
004 - Data processing & computer science
4
532 - Fluid mechanics; liquid mechanics
4
541 - Physical chemistry
4
304 - Factors affecting social behavior
3
531 - Classical mechanics; solid mechanics
3
576 - Genetics & evolution
3
580 - Plants (Botany)
3
628 - Sanitary & municipal engineering
3
006 - Special computer methods
2
338 - Production
2
414 - Phonology & phonetics
2
510 - Mathematics
2
515 - Analysis
2
518 - Numerical analysis
2
539 - Modern physics
2
543 - Analytical chemistry
2
570 - Life sciences; biology
2
571 - Physiology & related subjects
2
612 - Human physiology
2
615 - Pharmacology & therapeutics
2
629 - Other branches of engineering
2
658 - General management
2
800 - Literature & rhetoric
2
005 - Computer programming, programs & data
1
140 - Specific philosophical schools
1
542 - Techniques, equipment & materials
1
547 - Organic chemistry
1
616 - Diseases
1
630 - Agriculture & related technologies
1
650 - Management & auxiliary services
1
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