Signatura
500 - Natural sciences and mathematics
1,177
600 - Technology (Applied sciences)
542
300 - Social sciences
190
000 - Computer science, information, general works
132
100 - Philosophy & psychology
46
900 - History & geography
31
700 - The arts
6
200 - Religion
4
400 - Language
2
800 - Literature (Belles-lettres) and rhetoric
2