Classification
330 - Economics
363 - Other social problems & services
630 - Agriculture & related technologies
700 - The arts; fine & decorative arts
000 - Computer science, information & general works
2
581 - Specific topics in natural history
2
140 - Specific philosophical schools
1
301 - Sociology & anthropology
1
320 - Political science
1
333 - Economics of land & energy
1
340 - Law
1
350 - Public administration & military science
1
380 - Commerce, communications & transportation
1
551 - Geology, hydrology & meteorology
1
600 - Technology
1
610 - Medicine & health
1
612 - Human physiology
1
900 - History & geography
1