Classification
200 - Religion
320 - Political science
330 - Economics
2
333 - Economics of land & energy
2
340 - Law
363 - Other social problems & services
2
610 - Medicine & health
000 - Computer science, information & general works
1
300 - Social sciences
1
301 - Sociology & anthropology
1
380 - Commerce, communications & transportation
1
410 - Linguistics
1
581 - Specific topics in natural history
1
600 - Technology
1
700 - The arts; fine & decorative arts
1