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