L Education (General) QA75 Electronic computers. Computer science 14 H Social Sciences (General) 9 LB Theory and practice of education 7 LB1603 Secondary Education. High schools 7 T Technology (General) 5 T58.5-58.64 Information technology 5 LB2300 Higher Education 4 PE English 4 QA Mathematics 4 LC Special aspects of education 3 BV1460 Religious Education 2 QA76 Computer software 2 T58.6-58.62 Management information systems 2 TA Engineering (General). Civil engineering (General) 2 BF Psychology 1 BL Religion 1 BP Islam. Bahaism. Theosophy, etc 1 HB615-715 Entrepreneurship. Risk and uncertainty. Property 1 HF Commerce 1 HN Social history and conditions. Social problems. Social reform 1 HT Communities. Classes. Races 1 JA Political science (General) 1 LA History of education 1 LB1501 Primary Education 1 LC5201 Education extension. Adult education. Continuing education 1 Q Science (General) 1 S Agriculture (General) 1 TJ Mechanical engineering and machinery 1