TH1-9745 Building construction 5 T1-995 Technology(General) 2 H1-99 Social sciences (General) 1 HC79 Special topics-Including air pollution, automation,consumer demand, famines, flow of funds,etc 1 HD28-70 Management. Industrial Management 1 HF5001-6182 Business 1 L Education (General) 1 LB2300 Higher Education 1 NX1-820 Arts in general 1 QC1 Physics (General) 1 QC1-999 Physics 1 RA Public aspects of medicine 1 RA1190-1270 Toxicology. Poisons 1 RA643-645 Disease (Communicable and noninfectious) and public health 1 SH Aquaculture. Fisheries. Angling 1 TC401-506 River, lake, and water-supply engineering (General) 1 TD419-428 Water pollution 1 TD878-894 Special types of environment. Including soil pollution, air pollution, noise pollution 1