Classification
000 - Computer science, information & general works
30
140 - Specific philosophical schools
4
170 - Ethics
1
300 - Social sciences
1
301 - Sociology & anthropology
1
304 - Factors affecting social behavior
1
320 - Political science
7
330 - Economics
30
333 - Economics of land & energy
21
340 - Law
1
363 - Other social problems & services
25
380 - Commerce, communications & transportation
8
414 - Phonology & phonetics
9
500 - Natural sciences & mathematics
2
540 - Chemistry & allied sciences
1
551 - Geology, hydrology & meteorology
23
576 - Genetics & evolution
2
580 - Plants (Botany)
30
581 - Specific topics in natural history
6
600 - Technology
21
610 - Medicine & health
7
612 - Human physiology
5
620 - Engineering & allied operations
17
630 - Agriculture & related technologies
21
650 - Management & auxiliary services
1
657 - Accounting
1
700 - The arts; fine & decorative arts
19
720 - Architecture
5
800 - Literature & rhetoric
1
900 - History & geography
6