LB2300 Higher Education 28 P87-96 Communication. Mass media 21 HD28-70 Management. Industrial Management 16 P1-1091 Philology. Linguistics(General) 13 RA643-645 Disease (Communicable and noninfectious) and public health 11 TH1-9745 Building construction 11 QA75.5-76.95 Electronic computers. Computer science 4 TX341-641 Nutrition. Foods and food supply 4 Z Bibliography. Library Science. Information Resources 4 GN451-477.7 Intellectual life Including communication, recreation, philosophy, religion, knowledge, etc 3 R Medicine 3 HD59-59.6 Public relations. Industrial publicity 2 R5-130.5 General works 2 A General Works 1 B Philosophy. Psychology. Religion 1 BP1-253 Islam 1 D839 Post-war History, 1945 on 1 DF Greece 1 H1-99 Social sciences (General) 1 HD Industries. Land use. Labor 1 HD2340.8-2346.5 Small and medium-sized businesses, artisans,handicrafts, trades 1 HD6350-6940.7 Trade unions. Labor unions. Workers' associations 1 HE1-9990 Transportation and communications 1 HM811-821 Deviant behavior. Social deviance 1 L Education 1 LC5201 Education extension. Adult education. Continuing education 1 N1-(9211) Visual arts 1 NC Drawing Design Illustration 1 NX1-820 Arts in general 1 P Philology. Linguistics 1