Classification
320 - Political science
340 - Law
330 - Economics
250
300 - Social sciences
220
900 - History & geography
119
700 - The arts; fine & decorative arts
54
100 - Philosophy & psychology
48
200 - Religion
38
610 - Medicine & health
23
364 - Criminology
10
650 - Management & auxiliary services
8
297 - Islam, Babism & Bahai Faith
7
000 - Computer science, information & general works
5
630 - Agriculture & related technologies
5
304 - Factors affecting social behavior
4
576 - Genetics & evolution
4
361 - Social problems & social welfare in general
3
658 - General management
3
170 - Ethics
2
327 - International relations
2
241 - Christian ethics
1
301 - Sociology & anthropology
1
303 - Social processes
1
305 - Social groups
1
336 - Public finance
1
342 - Constitutional & administrative law
1
344 - Labor, social, education & cultural law
1
347 - Civil procedure & courts
1
363 - Other social problems & services
1
380 - Commerce, communications & transportation
1
382 - International commerce
1
450 - Italian, Romanian & related languages
1
600 - Technology
1
780 - Music
1
792 - Stage presentations
1
937 - Italy & adjacent territories to 476
1