Шифр
300 - Social sciences
3,118
900 - History & geography
761
800 - Literature (Belles-lettres) and rhetoric
379
600 - Technology (Applied sciences)
231
700 - The arts
146
500 - Natural sciences and mathematics
69
200 - Religion
65
000 - Computer science, information, general works
62
100 - Philosophy & psychology
30
400 - Language
15