Classification
330 - Economics
333 - Economics of land & energy
3
410 - Linguistics
610 - Medicine & health
320 - Political science
2
380 - Commerce, communications & transportation
2
700 - The arts; fine & decorative arts
2
000 - Computer science, information & general works
1
140 - Specific philosophical schools
1
200 - Religion
1
340 - Law
1
363 - Other social problems & services
1
370 - Education
1
600 - Technology
1