Collocazione
300 - Social sciences
20.676
900 - History & geography
9.441
600 - Technology (Applied sciences)
2.249
700 - The arts
2.182
200 - Religion
1.366
500 - Natural sciences and mathematics
1.326
000 - Computer science, information, general works
1.020
100 - Philosophy & psychology
802
800 - Literature (Belles-lettres) and rhetoric
725
400 - Language
309