003 Abstracting and Indexing Services 005 Accounting 007 Advertising 009 Aeronautics and Space Flight 011 Agriculture 013 Agricultural Economics 015 Agricultural Engineering 017 Crop Production and Soil 019 Dairying and Dairy Products 021 Feed, Flour and Grain 023 Fruit and Fruit Products 025 Livestock 027 Poultry 029 Anthropology 031 Archaeology 033 Architecture 035 Art 037