Classification
000 - Computer science, information & general works
6
100 - Philosophy & psychology
23
120 - Epistemology, causation & humankind
6
140 - Specific philosophical schools
160 - Logic
1
170 - Ethics
200 - Religion
297 - Islam, Babism & Bahai Faith
1
300 - Social sciences
5
301 - Sociology & anthropology
6
320 - Political science
8
330 - Economics
6
333 - Economics of land & energy
7
340 - Law
4
361 - Social problems & social welfare in general
1
363 - Other social problems & services
7
370 - Education
5
380 - Commerce, communications & transportation
1
400 - Language
2
410 - Linguistics
7
500 - Natural sciences & mathematics
1
520 - Astronomy & allied sciences
1
530 - Physics
2
551 - Geology, hydrology & meteorology
1
576 - Genetics & evolution
1
580 - Plants (Botany)
2
581 - Specific topics in natural history
3
600 - Technology
6
610 - Medicine & health
4
620 - Engineering & allied operations
2
630 - Agriculture & related technologies
1
700 - The arts; fine & decorative arts
12
800 - Literature & rhetoric
7
900 - History & geography
12