Classification
330 - Economics
254
005 - Computer programming, programs & data
141
000 - Computer science, information & general works
74
006 - Special computer methods
46
500 - Natural sciences & mathematics
38
331 - Labor economics
27
658 - General management
25
745 - Decorative arts
22
320 - Political science
21
333 - Economics of land & energy
18
004 - Data processing & computer science
15
630 - Agriculture & related technologies
14
300 - Social sciences
12
301 - Sociology & anthropology
11
336 - Public finance
11
600 - Technology
11
338 - Production
9
363 - Other social problems & services
9
370 - Education
8
380 - Commerce, communications & transportation
7
519 - Probabilities & applied mathematics
7
001 - Knowledge
5
332 - Financial economics
5
153 - Mental processes & intelligence
3
302 - Social interaction
3
304 - Factors affecting social behavior
3
610 - Medicine & health
3
510 - Mathematics
2
620 - Engineering & allied operations
2
621 - Applied physics
2
025 - Library operations
1
140 - Specific philosophical schools
1
340 - Law
1
381 - Commerce
1
384 - Communications; telecommunication
1
512 - Algebra
1
516 - Geometry
1
577 - Ecology
1
670 - Manufacturing
1
700 - The arts; fine & decorative arts
1