Classification
000 - Computer science, information & general works
15
100 - Philosophy & psychology
9
120 - Epistemology, causation & humankind
2
140 - Specific philosophical schools
5
160 - Logic
1
170 - Ethics
2
200 - Religion
8
297 - Islam, Babism & Bahai Faith
1
300 - Social sciences
10
301 - Sociology & anthropology
3
304 - Factors affecting social behavior
1
320 - Political science
11
330 - Economics
11
333 - Economics of land & energy
16
340 - Law
1
363 - Other social problems & services
6
370 - Education
5
380 - Commerce, communications & transportation
3
400 - Language
1
410 - Linguistics
1
500 - Natural sciences & mathematics
497
510 - Mathematics
1
520 - Astronomy & allied sciences
530 - Physics
27
540 - Chemistry & allied sciences
3
551 - Geology, hydrology & meteorology
2
576 - Genetics & evolution
7
580 - Plants (Botany)
3
581 - Specific topics in natural history
3
600 - Technology
10
610 - Medicine & health
9
620 - Engineering & allied operations
2
630 - Agriculture & related technologies
2
658 - General management
3
700 - The arts; fine & decorative arts
25
720 - Architecture
4
780 - Music
1
800 - Literature & rhetoric
6
900 - History & geography
21