Classification
320 - Political science
83
330 - Economics
83
300 - Social sciences
23
630 - Agriculture & related technologies
13
900 - History & geography
13
340 - Law
11
700 - The arts; fine & decorative arts
7
945 - Italian Peninsula & adjacent islands
6
820 - English & Old English literatures
5
610 - Medicine & health
4
000 - Computer science, information & general works
3
016 - Bibliographies of works on specific subjects
2
363 - Other social problems & services
2
370 - Education
2
550 - Earth sciences
2
576 - Genetics & evolution
2
580 - Plants (Botany)
2
720 - Architecture
2
140 - Specific philosophical schools
1
200 - Religion
1
307 - Communities
1
333 - Economics of land & energy
1
348 - Laws, regulations & cases
1
351 - Public administration
1
380 - Commerce, communications & transportation
1
394 - General customs
1
540 - Chemistry & allied sciences
1
600 - Technology
1
615 - Pharmacology & therapeutics
1
620 - Engineering & allied operations
1
707 - Education, research & related topics
1
711 - Area planning
1
800 - Literature & rhetoric
1
853 - Italian fiction
1
937 - Italy & adjacent territories to 476
1