Classification
820 - English & Old English literatures
961
900 - History & geography
278
320 - Political science
258
330 - Economics
228
340 - Law
99
004 - Data processing & computer science
94
005 - Computer programming, programs & data
88
300 - Social sciences
74
937 - Italy & adjacent territories to 476
67
200 - Religion
62
700 - The arts; fine & decorative arts
59
930 - History of ancient world to ca. 499
55
280 - Christian denominations & sects
54
870 - Italic literatures; Latin literature
43
006 - Special computer methods
41
610 - Medicine & health
40
800 - Literature & rhetoric
40
260 - Social & ecclesiastical theology
39
616 - Diseases
37
658 - General management
34
270 - History of Christianity & Christian church
32
304 - Factors affecting social behavior
32
230 - Christianity & Christian theology
31
306 - Culture & institutions
31
720 - Architecture
30
530 - Physics
28
940 - History of Europe
28
333 - Economics of land & energy
27
370 - Education
27
338 - Production
26
621 - Applied physics
26
100 - Philosophy & psychology
25
345 - Criminal law
25
620 - Engineering & allied operations
24
341 - Law of nations
22
470 - Italic languages; Latin
22
380 - Commerce, communications & transportation
19
510 - Mathematics
19
520 - Astronomy & allied sciences
19
945 - Italian Peninsula & adjacent islands
19
140 - Specific philosophical schools
18
305 - Social groups
18
519 - Probabilities & applied mathematics
18
332 - Financial economics
16
363 - Other social problems & services
16
780 - Music
16
920 - Biography, genealogy & insignia
16
170 - Ethics
15
630 - Agriculture & related technologies
15
240 - Christian moral & devotional theology
14
more ...