100 - Philosophy & psychology 320 - Political science 363 - Other social problems & services 600 - Technology 700 - The arts; fine & decorative arts 900 - History & geography 333 - Economics of land & energy 2 330 - Economics 1 380 - Commerce, communications & transportation 1 576 - Genetics & evolution 1 610 - Medicine & health 1 620 - Engineering & allied operations 1 630 - Agriculture & related technologies 1