TA Engineering (General). Civil engineering (General) 57 HD28 Management. Industrial Management 36 TD Environmental technology. Sanitary engineering 32 HD1394-1394.5 Real estate management 16 TP Chemical technology 15 GE Environmental Sciences 8 TH Building construction 7 HD Industries. Land use. Labor 5 NA Architecture 5 TJ Mechanical engineering and machinery 5 TK Electrical engineering. Electronics Nuclear engineering 5 G70.212-70.215 Geographic information system 4 G154.9-155.8 Travel and state. Tourism 3 QA75 Electronic computers. Computer science 3 QA76 Computer software 3 T Technology (General) 3 HD30.213 Management information systems. Decision support systems 2 HF Commerce 2 HF5549.5.M63 Employee motivation 2 HT101-395 Sociology, Urban 2 QE Geology 2 TH434-437 Quantity surveying 2 G70.39-70.6 Remote sensing 1 GA Mathematical geography. Cartography 1 GT Manners and customs 1 GV Recreation Leisure 1 HD61 Risk Management 1 HE Transportation and Communications 1 K Law (General) 1 L Education (General) 1