Classification
658 - General management
330 - Economics
109
500 - Natural sciences & mathematics
79
006 - Special computer methods
61
005 - Computer programming, programs & data
59
000 - Computer science, information & general works
54
381 - Commerce
31
519 - Probabilities & applied mathematics
27
670 - Manufacturing
25
745 - Decorative arts
25
300 - Social sciences
24
302 - Social interaction
24
338 - Production
17
620 - Engineering & allied operations
16
004 - Data processing & computer science
14
331 - Labor economics
14
153 - Mental processes & intelligence
12
700 - The arts; fine & decorative arts
12
600 - Technology
9
001 - Knowledge
8
363 - Other social problems & services
8
510 - Mathematics
8
333 - Economics of land & energy
7
610 - Medicine & health
6
650 - Management & auxiliary services
6
025 - Library operations
4
140 - Specific philosophical schools
3
380 - Commerce, communications & transportation
3
900 - History & geography
3
303 - Social processes
2
332 - Financial economics
2
370 - Education
2
384 - Communications; telecommunication
2
400 - Language
2
576 - Genetics & evolution
2
170 - Ethics
1
306 - Culture & institutions
1
320 - Political science
1
340 - Law
1
343 - Military, tax, trade & industrial law
1
361 - Social problems & social welfare in general
1
368 - Insurance
1
410 - Linguistics
1
530 - Physics
1
540 - Chemistry & allied sciences
1
572 - Biochemistry
1
580 - Plants (Botany)
1
622 - Mining & related operations
1