TA Engineering (General). Civil engineering (General) 30 HD28 Management. Industrial Management 15 HD1394-1394.5 Real estate management 12 TH Building construction 11 HD Industries. Land use. Labor 10 QA Mathematics 10 G70.212-70.215 Geographic information system 9 NA Architecture 9 QA75 Electronic computers. Computer science 8 T Technology (General) 8 TK Electrical engineering. Electronics Nuclear engineering 7 H Social Sciences (General) 5 HT101-395 Sociology, Urban 5 GV Recreation Leisure 4 Q Science (General) 4 TP Chemical technology 4 GE Environmental Sciences 3 JS Local government Municipal government 3 L Education (General) 3 G154.9-155.8 Travel and state. Tourism 2 HD30.213 Management information systems. Decision support systems 2 HF Commerce 2 HJ Public Finance 2 HN Social history and conditions. Social problems. Social reform 2 HT Communities. Classes. Races 2 LB Theory and practice of education 2 LB2300 Higher Education 2 NA9000-9284 City planning 2 QE Geology 2 T58.5-58.64 Information technology 2