Classification
620 - Engineering & allied operations
31
621 - Applied physics
28
004 - Data processing & computer science
22
000 - Computer science, information & general works
12
745 - Decorative arts
11
658 - General management
10
700 - The arts; fine & decorative arts
7
006 - Special computer methods
6
500 - Natural sciences & mathematics
6
600 - Technology
6
670 - Manufacturing
6
331 - Labor economics
5
005 - Computer programming, programs & data
4
338 - Production
4
629 - Other branches of engineering
4
900 - History & geography
4
330 - Economics
3
384 - Communications; telecommunication
3
580 - Plants (Botany)
3
610 - Medicine & health
3
371 - Schools & their activities; special education
2
414 - Phonology & phonetics
2
681 - Precision instruments & other devices
2
686 - Printing & related activities
2
140 - Specific philosophical schools
1
153 - Mental processes & intelligence
1
302 - Social interaction
1
333 - Economics of land & energy
1
363 - Other social problems & services
1
372 - Elementary education
1
380 - Commerce, communications & transportation
1
515 - Analysis
1
516 - Geometry
1
530 - Physics
1
543 - Analytical chemistry
1
571 - Physiology & related subjects
1
576 - Genetics & evolution
1
616 - Diseases
1
617 - Surgery & related medical specialties
1
630 - Agriculture & related technologies
1
641 - Food & drink
1
646 - Sewing, clothing & personal living
1
664 - Food technology
1
720 - Architecture
1
741 - Drawing & drawings
1