رقم الطلب (ديوي):
000 - Computer science, information, general works - 000 - Computer science, information, general works
و
300 - Social sciences - 300 - Social sciences
رقم الطلب (ديوي):
000 - Computer science, information, general works - 000 - Computer science, information, general works
و
300 - Social sciences - 300 - Social sciences