Classification
200 - Religion
380 - Commerce, communications & transportation
700 - The arts; fine & decorative arts
720 - Architecture
2
900 - History & geography
2
000 - Computer science, information & general works
1
320 - Political science
1
330 - Economics
1
333 - Economics of land & energy
1
340 - Law
1
363 - Other social problems & services
1
410 - Linguistics
1
610 - Medicine & health
1