L Education (General) 14 LB Theory and practice of education 14 QA75 Electronic computers. Computer science 10 HD28 Management. Industrial Management 4 TJ Mechanical engineering and machinery 2 TK Electrical engineering. Electronics Nuclear engineering 2 G70.212-70.215 Geographic information system 1 HB Economic Theory 1 HD Industries. Land use. Labor 1 HD1394-1394.5 Real estate management 1 HD30.2 Knowledge management 1 HE Transportation and Communications 1 HT Communities. Classes. Races 1 HT101-395 Sociology, Urban 1 LB1603 Secondary Education. High schools 1 LB2300 Higher Education 1 LC Special aspects of education 1 NA Architecture 1 QA Mathematics 1 QA76 Computer software 1 T Technology (General) 1 T58.6-58.62 Management information systems 1 TA Engineering (General). Civil engineering (General) 1 TK5015.888 Web sites 1 TK7885-7895 Computer engineer. Computer hardware 1 VM Naval architecture. Shipbuilding. Marine engineering 1