Classification
658 - General management
3,796
330 - Economics
734
370 - Education
317
700 - The arts; fine & decorative arts
309
333 - Economics of land & energy
298
600 - Technology
262
381 - Commerce
223
000 - Computer science, information & general works
209
620 - Engineering & allied operations
169
363 - Other social problems & services
167
900 - History & geography
164
320 - Political science
157
610 - Medicine & health
141
380 - Commerce, communications & transportation
133
650 - Management & auxiliary services
127
300 - Social sciences
116
500 - Natural sciences & mathematics
90
140 - Specific philosophical schools
84
338 - Production
84
158 - Applied psychology
83
580 - Plants (Botany)
80
100 - Philosophy & psychology
70
302 - Social interaction
70
355 - Military science
58
576 - Genetics & evolution
58
174 - Occupational ethics
57
400 - Language
49
551 - Geology, hydrology & meteorology
49
657 - Accounting
47
005 - Computer programming, programs & data
45
720 - Architecture
44
340 - Law
43
332 - Financial economics
42
630 - Agriculture & related technologies
39
670 - Manufacturing
39
745 - Decorative arts
38
004 - Data processing & computer science
36
659 - Advertising & public relations
36
331 - Labor economics
35
170 - Ethics
33
304 - Factors affecting social behavior
30
800 - Literature & rhetoric
28
006 - Special computer methods
27
336 - Public finance
27
414 - Phonology & phonetics
25
410 - Linguistics
24
306 - Culture & institutions
22
581 - Specific topics in natural history
20
362 - Social welfare problems & services
19
337 - International economics
18
more ...