Número de Clasificación
100 - Philosophy & psychology
1,265
300 - Social sciences
590
200 - Religion
120
500 - Natural sciences and mathematics
104
900 - History & geography
99
000 - Computer science, information, general works
77
700 - The arts
74
800 - Literature (Belles-lettres) and rhetoric
60
600 - Technology (Applied sciences)
26
400 - Language
24