370 - Education 600 - Technology 6 700 - The arts; fine & decorative arts 6 100 - Philosophy & psychology 4 320 - Political science 4 300 - Social sciences 3 380 - Commerce, communications & transportation 3 330 - Economics 2 363 - Other social problems & services 2 400 - Language 2 500 - Natural sciences & mathematics 2 000 - Computer science, information & general works 1 301 - Sociology & anthropology 1 361 - Social problems & social welfare in general 1 580 - Plants (Botany) 1 620 - Engineering & allied operations 1 658 - General management 1