000 - Computer science, information, general works - 000 - Computer science, information, general works
100 - Philosophy & psychology - 100 - Philosophy & psychology
200 - Religion - 200 - Religion
300 - Social sciences - 300 - Social sciences
400 - Language - 400 - Language
500 - Natural sciences and mathematics - 500 - Natural sciences and mathematics
600 - Technology (Applied sciences) - 600 - Technology (Applied sciences)
700 - The arts - 700 - The arts
800 - Literature (Belles-lettres) and rhetoric - 800 - Literature (Belles-lettres) and rhetoric
900 - History & geography - 900 - History & geography

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