TA Engineering (General). Civil engineering (General) 23 HD28 Management. Industrial Management 6 QA75 Electronic computers. Computer science 6 TJ Mechanical engineering and machinery 5 TP Chemical technology 5 NA Architecture 4 TH Building construction 4 HD Industries. Land use. Labor 3 HE Transportation and Communications 3 K Law (General) 3 QA76 Computer software 2 TK Electrical engineering. Electronics Nuclear engineering 2 TK5101-6720 Telecommunication 2 BP Islam. Bahaism. Theosophy, etc 1 G70.212-70.215 Geographic information system 1 G70.39-70.6 Remote sensing 1 HD1394-1394.5 Real estate management 1 L Education (General) 1 LC Special aspects of education 1 LC5201 Education extension. Adult education. Continuing education 1 NA9000-9284 City planning 1 QE Geology 1 T58.5-58.64 Information technology 1 Unspecified 1