HD28 Management. Industrial Management 85 TA Engineering (General). Civil engineering (General) 71 QA75 Electronic computers. Computer science 55 TJ Mechanical engineering and machinery 29 TP Chemical technology 26 HD1394-1394.5 Real estate management 23 T Technology (General) 23 TH Building construction 23 TK Electrical engineering. Electronics Nuclear engineering 17 QA76 Computer software 15 HD Industries. Land use. Labor 14 NA Architecture 12 H Social Sciences (General) 10 L Education (General) 10 QA Mathematics 10 G70.212-70.215 Geographic information system 9 TD Environmental technology. Sanitary engineering 9 Q Science (General) 7 HF Commerce 6 HT Communities. Classes. Races 6 LB Theory and practice of education 6 HG Finance 5 HT101-395 Sociology, Urban 5 TS Manufactures 5 G154.9-155.8 Travel and state. Tourism 4 HD30.213 Management information systems. Decision support systems 4 HD61 Risk Management 4 T58.5-58.64 Information technology 4 TX955-985 Building management 4 Unspecified 4