Classification
005 - Computer programming, programs & data
12
006 - Special computer methods
7
621 - Applied physics
7
620 - Engineering & allied operations
6
658 - General management
5
519 - Probabilities & applied mathematics
4
000 - Computer science, information & general works
3
001 - Knowledge
3
330 - Economics
3
331 - Labor economics
3
500 - Natural sciences & mathematics
3
572 - Biochemistry
3
300 - Social sciences
2
302 - Social interaction
2
333 - Economics of land & energy
2
370 - Education
2
510 - Mathematics
2
530 - Physics
2
570 - Life sciences; biology
2
610 - Medicine & health
2
616 - Diseases
2
745 - Decorative arts
2
150 - Psychology
1
304 - Factors affecting social behavior
1
320 - Political science
1
332 - Financial economics
1
336 - Public finance
1
338 - Production
1
374 - Adult education
1
380 - Commerce, communications & transportation
1
381 - Commerce
1
501 - Philosophy & theory
1
540 - Chemistry & allied sciences
1
551 - Geology, hydrology & meteorology
1
573 - Specific physiological systems in animals
1
577 - Ecology
1
613 - Personal health & safety
1
614 - Incidence & prevention of disease
1
617 - Surgery & related medical specialties
1
657 - Accounting
1
670 - Manufacturing
1
697 - Heating, ventilating & air-conditioning
1
700 - The arts; fine & decorative arts
1
709 - Historical, geographic & persons treatment
1
720 - Architecture
1
777 - [Unassigned]
1
910 - Geography & travel
1