رقم الطلب
300 - Social sciences
37,498
600 - Technology (Applied sciences)
19,209
800 - Literature (Belles-lettres) and rhetoric
6,618
500 - Natural sciences and mathematics
6,235
100 - Philosophy & psychology
5,160
900 - History & geography
4,968
700 - The arts
3,905
000 - Computer science, information, general works
3,513
200 - Religion
2,631
400 - Language
1,709