Classification
658 - General management
728
381 - Commerce
520
330 - Economics
285
302 - Social interaction
227
659 - Advertising & public relations
189
331 - Labor economics
142
006 - Special computer methods
129
338 - Production
77
500 - Natural sciences & mathematics
52
745 - Decorative arts
52
300 - Social sciences
48
670 - Manufacturing
42
000 - Computer science, information & general works
37
384 - Communications; telecommunication
26
650 - Management & auxiliary services
23
158 - Applied psychology
18
025 - Library operations
15
380 - Commerce, communications & transportation
14
005 - Computer programming, programs & data
9
519 - Probabilities & applied mathematics
9
001 - Knowledge
5
303 - Social processes
5
004 - Data processing & computer science
3
011 - Bibliographies
3
155 - Differential & developmental psychology
3
620 - Engineering & allied operations
3
153 - Mental processes & intelligence
2
301 - Sociology & anthropology
2
600 - Technology
2
621 - Applied physics
2
629 - Other branches of engineering
2
780 - Music
2
070 - News media, journalism & publishing
1
140 - Specific philosophical schools
1
150 - Psychology
1
170 - Ethics
1
174 - Occupational ethics
1
304 - Factors affecting social behavior
1
306 - Culture & institutions
1
320 - Political science
1
332 - Financial economics
1
333 - Economics of land & energy
1
340 - Law
1
418 - Standard usage & applied linguistics
1
430 - Germanic languages; German
1
510 - Mathematics
1
523 - Specific celestial bodies & phenomena
1
651 - Office services
1
740 - Drawing & decorative arts
1
741 - Drawing & drawings
1
more ...