HD28 Management. Industrial Management 168 TA Engineering (General). Civil engineering (General) 104 TK Electrical engineering. Electronics Nuclear engineering 74 QA75 Electronic computers. Computer science 42 HD1394-1394.5 Real estate management 33 TP Chemical technology 25 TJ Mechanical engineering and machinery 24 QA76 Computer software 22 TH Building construction 20 T Technology (General) 16 HD Industries. Land use. Labor 15 G70.212-70.215 Geographic information system 14 QA Mathematics 14 New Zealand 12 HF Commerce 10 LB Theory and practice of education 10 NA Architecture 10 L Education (General) 9 TS Manufactures 7 Case study 6 HD61 Risk Management 6 Unspecified 6 Cloud Computing 5 GE Environmental Sciences 5 HD30.2 Knowledge management 5 Marketing 5 G Geography (General) 4 H Social Sciences (General) 4 HD30.213 Management information systems. Decision support systems 4 HE Transportation and Communications 4