H Social Sciences (General) 5 BP Islam. Bahaism. Theosophy, etc 3 L Education (General) 3 QA75 Electronic computers. Computer science 3 T Technology (General) 3 TA Engineering (General). Civil engineering (General) 3 TH Building construction 3 HD Industries. Land use. Labor 2 HD28 Management. Industrial Management 2 JA Political science (General) 2 HB615-715 Entrepreneurship. Risk and uncertainty. Property 1 HC Economic History and Conditions 1 HD1394-1394.5 Real estate management 1 HF Commerce 1 HN Social history and conditions. Social problems. Social reform 1 HT101-395 Sociology, Urban 1 NA Architecture 1 QE Geology 1 TH434-437 Quantity surveying 1 TK Electrical engineering. Electronics Nuclear engineering 1