Classification
610 - Medicine & health
658 - General management
330 - Economics
53
000 - Computer science, information & general works
42
700 - The arts; fine & decorative arts
39
333 - Economics of land & energy
37
363 - Other social problems & services
29
600 - Technology
29
380 - Commerce, communications & transportation
25
140 - Specific philosophical schools
22
370 - Education
17
620 - Engineering & allied operations
15
320 - Political science
14
580 - Plants (Botany)
14
630 - Agriculture & related technologies
12
576 - Genetics & evolution
11
300 - Social sciences
10
500 - Natural sciences & mathematics
10
551 - Geology, hydrology & meteorology
10
900 - History & geography
8
170 - Ethics
7
338 - Production
7
361 - Social problems & social welfare in general
6
650 - Management & auxiliary services
6
384 - Communications; telecommunication
5
302 - Social interaction
4
720 - Architecture
4
340 - Law
3
400 - Language
3
581 - Specific topics in natural history
3
800 - Literature & rhetoric
3
100 - Philosophy & psychology
2
158 - Applied psychology
2
200 - Religion
2
304 - Factors affecting social behavior
2
530 - Physics
2
001 - Knowledge
1
297 - Islam, Babism & Bahai Faith
1
331 - Labor economics
1
364 - Criminology
1
368 - Insurance
1
374 - Adult education
1
410 - Linguistics
1
550 - Earth sciences
1
612 - Human physiology
1
615 - Pharmacology & therapeutics
1
629 - Other branches of engineering
1
657 - Accounting
1
745 - Decorative arts
1