L Education (General) 23 TK Electrical engineering. Electronics Nuclear engineering 20 TJ Mechanical engineering and machinery 17 HD28-70 Management. Industrial Management 15 Malaysia 14 HC79 Special topics-Including air pollution, automation,consumer demand, famines, flow of funds,etc 13 LB2300 Higher Education 13 P1-1091 Philology. Linguistics(General) 13 QA75 Electronic computers. Computer science 13 TP Chemical technology 13 Q Science (General) 12 TA Engineering (General). Civil engineering (General) 11 NA Architecture 10 QA Mathematics 10 T Technology (General) 10 H Social Sciences (General) 8 HD Industries. Land use. Labor 7 New Zealand 7 TH Building construction 6 Identity 5 Women 5 Communication 4 Cross-listing 4 Education 4 GE Environmental Sciences 4 HG Finance 4 Narrative 4 Performance 4 QC Physics 4 RA1190-1270 Toxicology. Poisons 4