Classification
410 - Linguistics
700 - The arts; fine & decorative arts
000 - Computer science, information & general works
7
330 - Economics
4
900 - History & geography
4
320 - Political science
3
333 - Economics of land & energy
3
400 - Language
3
600 - Technology
3
100 - Philosophy & psychology
2
140 - Specific philosophical schools
2
300 - Social sciences
2
380 - Commerce, communications & transportation
2
500 - Natural sciences & mathematics
2
770 - Photography, photographs & computer art
2
780 - Music
2
160 - Logic
1
200 - Religion
1
297 - Islam, Babism & Bahai Faith
1
340 - Law
1
363 - Other social problems & services
1
370 - Education
1
414 - Phonology & phonetics
1
530 - Physics
1
576 - Genetics & evolution
1
610 - Medicine & health
1
620 - Engineering & allied operations
1
630 - Agriculture & related technologies
1
720 - Architecture
1
800 - Literature & rhetoric
1