TK Electrical engineering. Electronics Nuclear engineering 19 TJ Mechanical engineering and machinery 10 TA Engineering (General). Civil engineering (General) 9 QA75 Electronic computers. Computer science 6 HD1394-1394.5 Real estate management 4 T Technology (General) 4 TP Chemical technology 4 HD28 Management. Industrial Management 3 TH Building construction 3 HF5601 Accounting 2 HG Finance 2 QA76 Computer software 2 G70.212-70.215 Geographic information system 1 GE Environmental Sciences 1 HD30.213 Management information systems. Decision support systems 1 HD61 Risk Management 1 HF Commerce 1 HF5549.5.M63 Employee motivation 1 L Education (General) 1 LB2300 Higher Education 1 Q Science (General) 1 SB Plant culture 1 TD Environmental technology. Sanitary engineering 1 TH434-437 Quantity surveying 1 TS Manufactures 1 TX Home economics 1