Classification
900 - History & geography
410 - Linguistics
46
400 - Language
44
414 - Phonology & phonetics
26
700 - The arts; fine & decorative arts
13
800 - Literature & rhetoric
10
000 - Computer science, information & general works
3
140 - Specific philosophical schools
3
300 - Social sciences
3
363 - Other social problems & services
3
576 - Genetics & evolution
3
320 - Political science
2
330 - Economics
2
333 - Economics of land & energy
2
491 - East Indo-European & Celtic languages
2
620 - Engineering & allied operations
2
720 - Architecture
2
100 - Philosophy & psychology
1
170 - Ethics
1
200 - Religion
1
297 - Islam, Babism & Bahai Faith
1
301 - Sociology & anthropology
1
370 - Education
1
520 - Astronomy & allied sciences
1
580 - Plants (Botany)
1
581 - Specific topics in natural history
1
600 - Technology
1